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Key Features

  • Caused by the macerating effect of heat, moisture, friction

  • Especially likely to occur in obese persons and in humid climates

Clinical Findings

  • Symptoms are itching, stinging, burning

  • Body folds develop fissures, erythema, maceration, and superficial denudation

  • Candidiasis may complicate intertrigo

Diagnosis

  • KOH preparation and Wood light to rule out Candida, tinea, and erythrasma

  • Differential diagnosis

    • Candidiasis

    • Tinea cruris (jock itch)

    • Psoriasis of body folds ("inverse psoriasis")

    • Erythrasma

    • Cellulitis

    • Seborrheic dermatitis

    • Tinea versicolor (pityriasis versicolor; rarely)

    • Scratching resulting from pediculosis (lice)

    • Contact dermatitis

Treatment

  • Maintain hygiene in the area, and keep it dry

  • Compresses may be useful in acute cases

  • Hydrocortisone 1% and an imidazole cream or nystatin cream are effective

  • Recurrences are common

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