Dr. M.J. Bazos,
TINEA CRURIS (JOCK
Tinea cruris is a very common
superficial fungal infection of the skin in the area of the groin and upper
thighs. It occurs most often in men and adolescent boys. Factors that increase
risk for infection include tinea pedis (athlete’s foot), obesity, hot
humid weather, and use of public baths or showers. Tinea cruris is caused by a
very common fungus. The diagnosis is usually made by examination of the skin,
but cultures or inspection under a microscope may occasionally be helpful. Tinea
cruris can be cured in 2–3 weeks with appropriate
Living With Your
Involved skin is usually
slightly raised, red to brown, and itches. There may be patches, scaling, or
small blisters. Both sides of the groin are usually affected. Itching is a
common symptom. As long as redness and scaling are present, you are contagious.
Scratching can cause oozing, swelling, and secondary
a topical antifungal cream or ointment available without a prescription from any
pharmacy, or use the medication prescribed by your doctor. Continue the cream
for 7 days after the area has cleared. If you have been prescribed medication to
be taken orally, be certain to complete the course of therapy as
• During and after treatment
to help healing and prevent recurrence, always dry the groin first and the feet
last after bathing or showering.
Wear loose-fitting, washed cotton underwear. Change underwear daily or more
often to keep the groin dry.
• Don’t share
• Don’t touch or
scratch feet and then touch the groin
• Don’t wear nylon or
other synthetic underwear that keep moisture in the groin
• Avoid wearing garments that
chafe the skin.
When to Call Your
• If the rash is not
improved after 1–2 weeks of
• If signs of a secondary
infection occur, such as fever, pus drainage, oozing, crusting, or
• If any scarring or
bleeding is present.