Illnesses, Injuries & Medical Conditions Index
JOCK ITCH (TINEA CRURIS)
What is Tinea Cruris?
Tinea cruris, or "jock itch", is a superficial fungus infection of the
groin and upper inner thighs which most commonly starts in hot humid
weather. It is caused by common fungus organisms that grow easily in
warm, moist areas of the skin. A rash appears which is red to tan or
brown in color, slightly scaly, and usually has a fairly sharp and
distinct margin. There may be central clearing. It usually does not
affect the scrotum and penis. Not every groin rash is due to fungal
infection. Intertrigo (mechanical rubbing, and moisture), psoriasis,
seborrheic dermatitis, candidal (yeast) infections, and several other
skin diseases can mimic fungal infections of the groin.
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Treatment
Antifungal creams may be required. Miconazole cream can be purchased
over the counter. If that is not helpful, several prescription creams
are available from your health care provider in Student Health Services.
These creams should be applied once or twice a day in a thin layer,
spreading the cream at least a half inch beyond the margin of the rash.
Treatment should be continued for one week after the rash goes away to
prevent reoccurrences. If your rash is still present after 1 month, see
your physician. Change in creams or oral medications may be needed.
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Prevention Measures
Prevention of "jock itch" consists of keeping the groin dry. After
showering, dry the groin carefully. Do not dry your feet first and then
your groin, because you may transfer fungus from your feet to your groin
on the towel. Use an absorbent powder if you sweat easily. Wear
absorbent cotton underwear. Avoid clothing (pants, underwear, and
sportswear) that is tight or occlusive. Don't wear wet swimming
gear for prolonged periods of time.
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