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Phone: 540-904-1458
Shenandoah Podiatry
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Toll Free: 855-997-2367
Roanoke: 540-904-1458

Erythrasma

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Erythrasma is a chronic superficial infection of the intertriginous areas of the skin. This is a bacterial infection and can be found between the toes. It commonly occurs between the 3rd and 4th toes

History/Physical:

This infection usually occurs in areas of body folds that are moist. The infection can be asymptomatic or itching may be associated with the infection.

The infection consists of a well-defined area with brown-red patches commonly found. Scaling may be present, as well as fissuring and maceration. The affected area may resemble athlete’s foot.

Causes:
Corynebacterium minutissimum – A bacterium found on the skin

Predisposing factors:

Excessive sweating

Obesity

Diabetes mellitus

Warm climate

Poor hygiene

Differential Diagnosis:

Candidiasis

Contact dermatitis

Psoriasis

Tinea pedis (athlete’s foot)

Workup:

Wood light examination – Reveals coral red fluorescence

Gram stain – Reveals gram-positive filamentous rods

Treatment:

Antibiotics – Erythromycin is the drug of choice. Your doctor may prescribe 1-2 weeks of antibiotic therapy.

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