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PubMed2006

Oedema as a risk factor for multiple episodes of cellulitis/erysipelas of the lower leg: a series with community follow-up.

BACKGROUND: Cellulitis of the lower leg is a common problem with considerable morbidity. Risk factors are well identified but the relationship between consequences of cellulitis and further episodes is less well understood. OBJECTIVES: To review risk factors, treatment and complications in patients with lower leg cellulitis, to determine the frequency of long-term complications and of further episodes, and any relationship between them, and to consider the likely impact of preventive strategies based on these results. METHODS: Patients with ascending, presumed streptococcal, cellulitis of the lower leg were identified retrospectively from hospital coding. Hospital records, together with questionnaires to both general practitioners and patients, were used to record subsequent complications and identifiable risk factors for further episodes. RESULTS: Of 171 patients, 81 (47%) had recurrent episodes and 79 (46%) had chronic oedema. The concurrence of these two factors was strongly correlated (P < 0.0002). Based on 143 completed questionnaires, oedema was apparently due to or persistently asymmetrical after the cellulitic episode in 52 (37%), and 19 (13%) had ulceration attributed to, rather than causing, cellulitis. Of those with three or more episodes, half did not lead to hospital admission. Toeweb maceration was reported in only 15% of questionnaires. Use of antibiotic treatment for more than 28 days was associated with a reduced risk of leg ulceration or of prolonged oedema compared with shorter courses, but neither difference was statistically significant. CONCLUSIONS: This study demonstrates that the true frequency of postcellulitic oedema, as well as that of further episodes, is probably underestimated. Furthermore, there is a strong association between these factors, each of which is both a risk factor for, and a consequence of, each other, and for which intervention (reduction of oedema or more prolonged antibiotic therapy) may reduce the risk of recurrent infection. By contrast, self-reporting of toeweb maceration is low, so attempts to reduce the risk of recurrent cellulitis by treatment of tinea pedis or bacterial intertrigo may fail.

Anti-Bacterial Agents↗
PubMed2000

Necrotizing fasciitis in children in eastern Ontario: a case-control study.

BACKGROUND: Early recognition and treatment are important factors that can help improve survival following necrotizing fasciitis. However, early recognition is complicated by the difficulty in distinguishing the infection from other, less serious soft-tissue infections such as cellulitis. We reviewed the charts of children presenting with necrotizing fasciitis at a tertiary care pediatric hospital in Ontario to document potential increases in the frequency of cases and to identify clinical and laboratory features that could help distinguish between necrotizing fasciitis and cellulitis. METHODS: Necrotizing fasciitis was defined as a soft-tissue infection characterized by necrosis of subcutaneous tissue and confirmed at surgery or on pathological examination. A retrospective chart review was conducted to identify cases of necrotizing fasciitis that occurred between June 1, 1983, and May 31, 1999. The characteristics of the identified cases, their clinical manifestations and the laboratory features at presentation were compared with those of matched controls admitted to the hospital with cellulitis. RESULTS: In total, 8 cases of necrotizing fasciitis were identified during the study period. There were no cases from 1983 to 1987, 1 from 1988 to 1991, 1 from 1992 to 1995, and 6 cases from 1996 to 1999. Compared with the children who had cellulitis, those who had necrotizing fasciitis were more likely to present with a generalized erythematous rash (odds ratio [OR] 11.0; 95% confidence interval [CI] 1.5-81.6) and a toxic appearance (OR 23.0; 95% CI 2.0-262.5). They were also more likely than the children with cellulitis to have a history of fever (8/8 v. 10/24, p = 0.004), a higher temperature (mean 38.7 degrees C v. 37.8 degrees C, p = 0.006), a higher respiratory rate (mean 31.5 v. 25.4 breaths/min, p = 0.02) and a lower platelet count on presentation (mean 194.0 v. 299.3 x 10(9)/L, p = 0.03). INTERPRETATION: On presentation, factors that may help distinguish necrotizing fasciitis from cellulitis include a generalized erythematous rash, toxic appearance, fever and low platelet count.

Adolescent↗
PubMed2004

Determinants of severity for superficial cellutitis (erysipelas) of the leg: a retrospective study.

BACKGROUND: Superficial cellulitis (erysipelas) of the leg is a frequent infectious disease with a favorable outcome, whereas some patients present a serious disease. The determinants of severity for superficial cellulitis (erysipelas) of the leg have not yet been clearly established. In order to determine the characteristics of patients presenting with severe superficial cellulitis of the leg, we analyzed patients with favorable and unfavorable outcome. METHODS: The records of 167 patients referred to Rouen University Hospital for non-superficial cellulitis of the leg were analyzed. Two severity groups of patients were retrospectively defined. Patients in the severe group either died secondary to infection during hospital stay or were hospitalized for a duration at least equal to the 90th percentile (i.e., >21 days of hospitalization). The remaining patients were considered as presenting with non-severe cellulitis. Potential determinants of severity were analyzed by univariate and multivariate analysis based on logistic regression. RESULTS: From univariate analysis, the following general factors were positively associated with severity: advanced age, arterial hypertension, diabetes mellitus, elevated leukocytosis, and elevated neutrophilia. The local factors associated with severity were ulcer of the leg and arteriosclerosis obliterans of the leg. From multivariate analysis, only age (P=0.004), diabetes mellitus (P=0.01), and leukocytosis (P=0.04) appeared to be independently associated with severity. A close to significant association was also found with arteriosclerosis obliterans of the leg (P=0.07). Whereas general complications occurred more frequently in the severe group, no such difference was observed for local complications. CONCLUSIONS: Determinants of severity for superficial cellulitis of the leg include high age and associated medical conditions. Aged patients and patients with diabetes mellitus, elevated leukocytosis, or possibly arteriosclerosis obliterans of the leg should preferably be hospitalized for specific care of associated conditions to avoid the occurrence of general complications.

Journal Article↗
PubMed1996

Endoscopic vs external drainage of orbital subperiosteal abscess.

Periorbital cellulitis is frequently limited to the preseptal region. However, there may be associated postseptal inflammation and orbital subperiosteal abscess (SPA). Surgical management of orbital SPA includes open drainage through an external ethmoidectomy approach, although recently the use of endoscopic techniques has been reported. This study was undertaken to evaluate postseptal cellulitis and orbital SPA in patients with periorbital cellulitis and to assess the safety and effectiveness of endoscopic management of orbital SPA. From 1989 through 1994, 158 patients were admitted with a diagnosis of periorbital cellulitis. Nineteen of these patients were diagnosed with postseptal orbital inflammation, and 14 underwent surgical drainage via an external approach, an endoscopic approach, or a combination of both. Issues addressed include (1) the role of sinus disease as the cause of periorbital cellulitis; (2) the role of computed tomographic scanning; (3) the effectiveness of aggressive medical therapy; and (4) the results of endoscopic drainage of orbital SPA compared with the external approach.

Abscess↗
PubMed2003

Occurrence of Actinomyces in infections of endodontic origin.

Species of Actinomyces have been associated with endodontic treatment that failed to heal. In this study polymerase chain reaction was used with a pair of universal primers for Actinomyces and species-specific primers to evaluate the contents of infected root canals and aspirates from abscesses or cellulitis for the presence of Actinomyces israelii, A. naeslundii, and A. viscosus. DNA was extracted from 131 clinical samples. DNA from 2 of the original 131 samples was not available for polymerase chain reaction with the universal primer for Actinomyces and A. naeslundii. DNA reacting with the universal primer for Actinomyces was detected in 72 of 129 (55.8%) clinical samples. Of those 41 of 51 (80.4%) were from infected root canals, 22 of 48 (45.8%) were from abscesses, and 9 of 30 (30%) were associated with cellulitis. A. viscosus was detected in 42 of 131 (32.1%) clinical samples. Of those 31 of 52 (59.6%) were from infected root canals, 6 of 43 (14%) were from abscesses, and 5 of 36 (13.9%) were associated with cellulitis. A. israelii was detected in 31 of 131 (23.7%) clinical samples. Of those 14 of 52 (26.9%) were from infected root canals, 11 of 43 (25.6%) were from abscesses, and 6 of 36 (16.7%) were associated with cellulitis. A. naeslundii was detected in 11 of 131 (8.5%) clinical samples. Of those 7 of 51 (13.7%) were from infected root canals, 2 of 48 (4.2%) were from abscesses, and 2 of 30 (6.7%) were associated with cellulitis.

Actinomyces↗
PubMed2001

Accuracy and usefulness of radiographic assessment of cervical neck infections in children.

OBJECTIVE: To determine the accuracy and usefulness of computed tomography (CT) in diagnosis and management of lateral and deep neck infections METHODS: An 11-year retrospective review of 110 children (age range 1 months to 17 years) was conducted at a tertiary care children's hospital. RESULTS: Fifteen patients treated medically (8 with cellulitis, 7 with early abscess) improved. Of the remaining 95 patients who had 107 cervical sites drained surgically, CT predicted accurately operative findings in 81 (76%) cases (72 with abscess, 9 with cellulitis). In the 26 (24%) cases with discrepancy between CT interpretation and operative findings, the most common problem was differentiating early abscess from cellulitis with 18 false positives (no abscess at surgery). In 8 cases, CT diagnosis other than abscess was made (4 cellulitis, 1 inflammatory mass, 1 hematoma, 1 lymphangioma, and 1 tumour); however, when the patients were operated on because of lack of improvement, an abscess was found. CONCLUSIONS: Although CT is helpful both in determining the presence and location of neck infections in children, the CT scan is less helpful in differentiating abscess from lymphadenitis, cellulitis, and some complex cervical masses.

Abscess↗
PubMed2002

Orbital complications of sinusitis in children.

BACKGROUND: Orbital complications of sinusitis are uncommon but can result in significant morbidity if not appropriately managed. OBJECTIVE: This study was conducted to evaluate the clinical presentation, diagnosis, management, and outcome of orbital complications of sinusitis in children treated at our institution over a 10-year period. METHODS: The study retrospectively reviewed cases of 139 children with evidence of orbital complications of sinusitis admitted to the Montreal Children's Hospital between January 1990 and March 2000. Factors assessed included the clinical presentation, radiologic findings, management, and outcome (length of admission, complications). Complications were classified as preseptal if they did not penetrate the periorbita. Postseptal complications were defined as those penetrating the periorbita and were further subdivided into cellulitis and abscess categories. RESULTS: Seventy-two percent of patients presented with preseptal cellulitis, 19% with orbital cellulitis, and 9% with subperiosteal abscess. Ophthalmoplegia and proptosis at presentation were found to be predictors of postseptal disease, although computed tomography (CT) was necessary to differentiate between cellulitis and abscess. Preseptal disease resolved with antibiotics in all cases. Postseptal disease was treated medically and in some cases surgically, although surgery did not affect outcome. CONCLUSION: Preseptal complications of sinusitis can be diagnosed clinically without a CT scan and should be treated with an appropriate course of intravenous antibiotics. Postseptal complications of sinusitis can be diagnosed by the presence of ophthalmoplegia or proptosis and mandate a CT scan to differentiate abscess from orbital cellulitis. Management of these patients should include intravenous antibiotics, reserving surgery for selected cases.

Abscess↗
PubMed1999

Retropharyngeal abscesses: a clinical and radiologic correlation.

OBJECTIVE: This study evaluates the efficacy at our centre of the lateral neck x-ray and the computed tomography (CT) scan in differentiating retropharyngeal cellulitis from abscess in retropharyngeal space inflammatory process. METHOD: We reviewed the medical records of 37 patients with the diagnosis of retropharyngeal abscess or cellulitis hospitalized at the Centre Universitaire de Santé de l'Estrie in Sherbrooke between 1986 and 1997. Patients with a positive drainage at surgery were considered as retropharyngeal abscess and the rest as cellulitis. We measured the sensitivity, specificity, and positive and negative predictive values for the lateral neck x-ray and CT scan. Demographic and clinical data were also extracted for each patient. RESULTS: Twenty-five patients were classified as retropharyngeal cellulitis and only six patients as retropharyngeal abscess, although 13 patients went to the operating room for drainage. Results for the sensitivity and specificity were 80% and 100% for the lateral neck x-ray and 100% and 45% for the CT scan. Positive and negative predictive values for lateral neck x-ray were 100% and 94%, respectively. Forty percent and 100% were the values calculated for the CT scan. Clinical data were consistent with what has been reported in the literature. CONCLUSION: CT scan is helpful in the management of retropharyngeal abscess but has limits in differentiating cellulitis and abscess. Lateral neck x-ray was found to be very specific when the air sign was present.

Cellulitis↗
PubMed2006

The treatment of congenital dacryocystocele.

PURPOSE: To determine the proper management of congenital dacryocystocele. DESIGN: Retrospective interventional case series. METHODS SETTINGS: Clinical practice. STUDY POPULATION: Twenty-seven consecutive patients with 29 congenital dacryocystoceles who presented from 1987 through 2006. MAIN OUTCOME MEASURES: The charts were reviewed for the presence and age of onset of infection, methods and age of treatment, and response to treatment. RESULTS: Dacryocystitis and preseptal cellulitis requiring intravenous antibiotic therapy were present in 11 lacrimal systems (37.9%), and dacryocystitis without cellulitis was present in an additional 10 lacrimal systems (34.5%). One or more probings were performed in 26 patients (89.7%). Resolution with conservative therapy occurred in three lacrimal systems. The initial probing was successful in seven of seven lacrimal systems (100%) that did not have infection, but was successful in only 10 of 19 lacrimal systems (53%) that had dacryocystitis with or without cellulitis. The mean age of probing in the surgical patients who did not develop infection was 5.9 days, whereas the mean age at first probing in surgical patients who developed infection was 17.3 days. CONCLUSIONS: Patients with congenital dacryocystocele should have probing on an urgent basis and as early in life as possible, unless the lacrimal sac decompresses into the nose at the time of the initial examination. This approach will reduce the incidence of dacryocystitis and cellulitis, and improve the success rate of surgery.

Age of Onset↗
PubMed2006

Skin and soft tissue infections.

The spectrum of skin and soft tissue infections seen by the primary care physician can be as benign as folliculitis to as life-threatening as NF. Cellulitis remains the most common skin and soft tissue infection seen in primary care. The ever present danger of ca-MRSA, however, has changed the way primary care physicians approach the common problem of cellulitis. The presence of risk factors for colonization with ca-MRSA and a history or examination finding of skin abscess should raise the suspicion of ca-MRSA, and antibiotic therapy should include TMP-SMZ, clindamycin, doxycycline, or minocycline. Skin abscess may occur independently of cellulitis, and often may safely be incised and drained in the primary care setting as long as timely follow-up is assured to assess for wound healing. Available evidence suggests that abscess formation without accompanying cellulitis does not require oral antibiotic therapy. Finally, although NF is rare as an outpatient clinical presentation, it is a diagnosis that the primary care physician should be familiar with. Failure to consider the diagnosis and refer may lead to significant morbidity and even mortality.

Abscess↗
PubMed2005

[Orbital complications of acute pediatric rhinosinusitis: medical treatment versus surgery and analysis of the computer tomogram].

BACKGROUND: One of the most common complications of acute pediatric rhinosinusitis is orbital complication. For subperiosteal abscess, in particular, there are no generally accepted therapy recommendations. PATIENTS: A retrospective study of 45 children with acute orbital rhinosinusitis complications, treated on an in-patient basis at the Department of ENT, Inselspital, University of Bern (1999-2004) is presented. The aim was to analyze conservative medical versus surgical treatment with regard to the individual stages of complications (according to the classification of Moloney, 1987) and, subsequently, to arrive at a therapy recommendation. RESULTS: All children with preseptal cellulitis (stage I), 80 % of children with radiological a subperiosteal phlegmona (Stage IIA) and 67 % of the children with radiological a subperiosteal abscess (Stage IIB) could be treated conservatively. The child with the orbital cellulitis (Stage III) was treated surgically. CONCLUSION: The preseptal cellulitis can be treated conservatively. We recommend an initial conservative therapy of 24 - 48 hours for subperiosteal phlegmona and subperiosteal abscess in the presence of normal vision. Surgical intervention should take place only if there is no improvement after this time interval. The orbital cellulitis should be treated primary surgically.

Abscess↗
PubMed1982

A prospective study of prophylactic penicillin in acutely burned hospitalized patients.

The use of prophylactic low-dose penicillin acutely burned, hospitalized patients remains controversial. Fifty-one adult patients with burns of 1% to 91% total body surface area were prospectively studied to determine the efficacy of prophylactic penicillin in the prevention of wound cellulitis and burn wound sepsis, and to examine the influence of prophylactic penicillin on the emergence of antibiotic resistant microorganisms. In 25 patients given a 5-day course of penicillin prophylactically, 11 developed cellulitis and two had burn wound sepsis. A similar group of patients given placebo developed seven cases of cellulitis and three cases of burn wound sepsis (p = 0.340). No patient in either group developed gentamicin-resistant Gram-negative organisms, although the gastrointestinal tracts of two patients in the penicillin group showed new colonization by yeast. We conclude that the routine administration of prophylactic penicillin neither protects against cellulitis and burn wound sepsis, nor promotes selection of antibiotic-resistant bacteria in hospitalized patients with acute thermal injury.

Adolescent↗
PubMed1995

[A case of toxic shock-like syndrome due to Streptococcus pyogenes].

A case of toxic-shock syndrome due to Streptococcus pyogenes is reported. A 76-year-old female was admitted with complaints of fevers and chills. She had been suffering from cellulitis on her right dorsum pedis for 7 months. Laboratory data on admission showed elevated values of WBC, CRP, and dysfunction of the liver and kidney. She was diagnosed as sepsis due to the cellulitis, and was treated with PIPC and FMOX. However, several hours after admission, her blood pressure decreased and oliguria appeared. Bacteriological examinations from the blood and the cellulitis revealed group A beta-hemolytic Streptococcus which gave streptococcal pyrogenic exotoxin (T-28, SPE.B + C). She died 23 hours after her admission in spite of changing antibiotics to a high-dose of PC-G therapy. This is one of the rare cases of toxic shock-like syndrome due to Streptococcus pyogenes from the cellulitis of the dorsum pedis.

Aged↗
PubMed1995

Intraoral ultrasound evaluation of peritonsillar abscess.

Peritonsillar cellulitis and peritonsillar abscess are similar clinical entities with markedly different methods of treatment. Therefore, accurate diagnosis is paramount to appropriate treatment. This pilot study was designed to evaluate the sensitivity and specificity of intraoral ultrasound as a noninvasive method of differentiating abscess from cellulitis. Sixteen consecutive patients suspected of having peritonsillar abscess were prospectively evaluated with intraoral ultrasound. The results were confirmed with imaging or surgical drainage. Correct diagnoses were made in 9 (90%) of 10 abscesses and in 5 (83%) of 6 cases of cellulitis. Our results suggest that, while there is a learning curve for intraoral ultrasound, it is an accurate, noninvasive, and inexpensive tool to differentiate abscess from cellulitis. We believe that this will be a clinically useful technique in the future.

Adolescent↗
PubMedDate not supplied

Occurrence of the temperature-sensitive hemagglutinin among avian Escherichia coli.

In this study, we determined the occurrence of the tsh gene among 305 Escherichia coli isolates from chickens by means of the polymerase chain reaction and agglutination of chicken erythrocytes; 200 of those isolates were obtained from chickens with colisepticemia, 52 isolates were from lesions of cellulitis, and 53 were from feces of normal chickens. The tsh gene was found in 79 (39.5%) isolates from colisepticemia, in 10 (19%) cellulitis-derived E. coli isolates, and in two (3.8%) fecal isolates. Among the tsh+ strains, 68 (86%) isolates from colisepticemia and nine (90%) from cellulitis agglutinated chicken erythrocytes in the presence of mannose, after growing the strains on colonization factor antigen agar plates at 26 C, which confirms a correlation between mannose-resistant hemagglutination and expression of hemagglutinin Tsh. These results show, for the first time, the presence of the gene tsh in cellulitis-derived E. coli isolates; the high frequency of this gene among avian pathogenic E. coli isolates in Brazil indicates that its putative role as a virulence factor should be studied more thoroughly.

Adhesins, Escherichia coli↗
PubMed2003

Erysipelas: recognition and management.

Erysipelas is an acute bacterial infection of the dermis and hypodermis that is associated with clinical inflammation. It is a specific clinical type of cellulitis and, as such, it should be studied as a specific entity. Erysipelas is generally caused by group A streptococci; it is highly probable that streptococcal toxins also play a role, which could, in part, help explain the clinical inflammation. Erysipelas of the leg is the main clinical type encountered. The face, arm, and upper thigh are the other most common sites for the occurrence of erysipelas. After a sudden onset, areas of erythema and edema characteristically enlarge with well-defined margins. Athlete's foot is the most common portal of entry for the disease. Erysipelas is generally associated with high fever, and adenopathy and lymphangitis are sometimes present. At the time of diagnosis, it is important to look for clinical markers of severity (local signs and symptoms, general signs and symptoms, co-morbidity, social context) which would necessitate hospitalization. There are many differential diagnoses, particularly in the case of atypical dermo-hypodermitis. Some bacterial infections may have specific clinical aspects or may lead to a diagnosis of cellulitis. Necrotizing cellulitis or fasciitis are life-threatening diseases and a rapid diagnosis is important. Other noninfectious types of cellulitis have been reported in many diseases, both localized or generalized. The biology of typical erysipelas is of little value in diagnosis and a laboratory workup is usually not required. There are few local complications associated with erysipelas; abscess can occur in some patients and septicemia is rare. Recurrence is the more distressing complication. Treatment of patients with erysipelas has been evaluated in a small number of studies. In most of them, erysipelas has been included in therapeutic studies of 'severe cutaneous infections'. This is not justified as in fact erysipelas is usually sensitive to penicillin G. Amoxicillin and macrolides are also effective. However, comparative, cost-analysis studies need to be performed to determine the best therapeutic option. Bed rest with the leg elevated is also important. Anticoagulants are indicated in patients at risk of venous thromboembolism. The portal of entry will also require treatment. Long-term antibacterial therapy is required for patients with recurrence.

Anti-Bacterial Agents↗
PubMed1999

Characterization of the risk to human health of pathogenic Escherichia coli isolates from chicken carcasses.

The purpose of this study was to evaluate the risk for human health associated with pathogenic Escherichia coli isolated from airsacculitis and cellulitis in chickens, by comparing the genotypic and phenotypic profiles of avian E. coli isolates and E. coli strains isolated from sick humans during the same period and in the same geographical area as the avian isolates. A total of 96 isolates and 46 isolates from lesions of cellulitis and airsacculitis, respectively, were obtained. Isolates from the backs of some of the affected and healthy birds and 91 intestinal and extraintestinal isolates from humans with diarrhea, urinary tract infections, or septicemia were examined. The frequency of antimicrobial resistance was in general higher in the avian than in the human isolates. VT1-VT2-Eae and VT2-Eae, pathotypes associated with hemolytic and uremic syndrome and bloody diarrhea in humans, were the most frequently encountered pathotypes in human intestinal isolates but were not recovered from the avian isolates. Aero-Pap-TSH and Aero-TSH were the most frequently encountered pathotypes in avian isolates but were rarely observed in human isolates. No avian isolate was of serogroup O157, whereas many human isolates belonged to this O group. O78 and O2 were the most frequently observed O groups in avian isolates but were rarely found in human isolates. Only two avian isolates demonstrated possible relatedness to human isolates based on pulsed-field gel electrophoresis profiles, but they belonged to different pathotypes. Our results suggest that avian isolates recovered from cellulitis and air sacullitis possess very few of the attributes required to cause diseases in humans. It is also concluded that isolates from cellulitis and airsacculitis do not represent a greater hazard than isolates from the back of healthy birds.

Air Sacs↗
PubMed2001

Skin and soft tissue infection.

Abstract. Normal skin is heavily colonized by bacterial flora. The most common are the various nonpathogenic gram-positive bacteria such as Staphylococcus epidermidis (coagulase-negative). Skin and soft tissue infections are usually caused by Staphylococcus aureus (S. aureus) and Streptococcus pyogenes. This article discusses common and some not so common bacterial skin infections, including impetigo, folliculitis, furncles and carbuncles, cellulitis and erysipelas, gangrenous cellulitis, staphylococcal scalded skin syndrome and scarlet fever. Impetigo and ecthyma are common bacterial infections of the skin commonly caused by S. aureus and / or Group A streptoccus. In mild and localized impetigo topical antibiotics whereas in widespread or severe one and in ecthyma systemic antibiotics like, cloxacillin, erythromycin, azithromycin or cephalexin should be used. Folliculitis, furunculosis and carbuncle are folliculocentric infections caused by S. aureus involving the variable depth and extent of the follicle(s) and surrounding tissue. These conditions can be treated with topical or systemic antibiotics like cloxacillin, cephalexin, erythromycin, amoxicillin/clavulanic acid or vancomycin. Staphylococcal scalded skin syndrome is a toxin mediated exfoliative dermatosis caused by S. aureus of phase group II. Intravenous penicillinase-resistant anti-staphylococcal antibiotics like methicillin, cloxacillin, cephalosporin or erythromycin are required. Erysipelas and cellulitis are acute infections of dermal and subcutaneous tissues caused most frequently by Group A beta-hemolytic streptococci (erysipelas) or S. aureus requiring systemic antibiotics like oral or intravenous penicillin, erythromycin, cephalexin, cloxacillin, vacomycin, minocycline or ciprofloxacin depending upon the severity, suspected causative organism and culture/sensitivity results. Gangrenous cellulitis is characterized by infection with necrosis of skin and underlying subcutaneous tissue due to various pathogens occurring at different site. Ampicillin, gentamicin, and either metronidazole or clindamycin intravenously in standard doses are recommended for the treatment.

Cellulitis↗