Jock Itch (Tinea Cruris)

Diagnosis

Your doctor often can make the diagnosis just by looking at the rash. Your doctor may gently scrape the skin to get a sample to look for fungi under the microscope. With stubborn cases, your doctor may send the sample to a laboratory to pinpoint the fungus that's causing the trouble. Other causes of a rash in the groin include yeast infection of the skin, seborrheic dermatitis and psoriasis.

Expected Duration

Jock itch usually can be treated within weeks, although it commonly comes back. Treatment for chronic (long-lasting) infections may last one or two months.