Tinea cruris, an itchy superficial fungal infection of the groin and adjacent skin.

Causative Agent: Epidermophyton floccosum, Trichophyton rubrum, T. mentagrophytes.

Signs And Symptoms: Itchy red scaly rash with a sharp demarcation.

Risk Factors: Clothing habits, poor personal hygiene, sharing towels, close contact with infected animals, swimming, obesity.

Diagnosis: Clinical appearance, wood’s lamp examination, potassium hydroxide(KOH) preparation, fungal culture.

Treatment: Topical creams: Clotrimazole, Amorolfine, Terbinafine.

Oral antifungal agents – for extensive involvement, Itraconazole, Fluconazole, Griseofulvin, or Terbinafine.