Erythrasma is a superficial infection of the skin of bacterial origin which usually involves the skin folds such as groin and axilla.
Skin Folds (groin, axilla, webspace, rarely on trunk)
Erythrasma is more common in humid climates, patients with excessive sweating, or patients with comorbidities including diabetes.
Diagnosis based on the classic “coral red” fluorescence with Woods Lamp (type of blue light).
Topical Clindamycin Solution, Topical benzoyl peroxide wash, rarely oral antibiotics