Let’s dive into what can make jock itch worse, how to tell jock itch apart from other similar conditions, and how to successfully treat jock itch. Jock itch (tinea cruris) is a fungal skin infection that affects your groin and thighs. Jock itch is very contagious. It can spread through person-to-person contact and contaminated objects. Jock itch treatment includes using antifungal creams, wearing loose clothing, and keeping your skin dry. Jock itch is extremely common and also extremely treatable. Jock itch, or tinea cruris, is a superficial infection on the skin of the groin caused by a few different species of fungi. Tinea cruris (TC), also known as jock itch, is a common type of contagious, superficial fungal infection of the groin and buttocks region, which occurs predominantly but not exclusively in men and in hot-humid climates. [3][4] Jock Itch or tinea cruris is found in people with eczema, sweat & weight issues. Learn how to prevent & treat this fungal infection. Jock itch is a fungal skin infection that causes an itchy rash in warm, moist areas of the body. The rash often affects the groin and inner thighs and may be shaped like a ring. Jock itch is a red, itchy fungal infection that often grows between your thighs and around your buttocks. However, it is fairly easy to treat, so you should be able to get rid of it quickly. To treat jock itch, try washing the affected area twice a day with an anti-dandruff shampoo, like Nizoral or Selsun Blue, to stop the spread of the fungus or bacteria. Jock itch, medically known as tinea cruris, or ringworm of the groin, is an infection of the groin area caused by fungus and can be rather annoying to anyone who has it. As the common name implies, it causes an itching or a burning sensation in the groin area, thigh skin folds or anus. Jock itch is an itchy rash that appears in your groin area. A fungus causes jock itch. Treatment includes antifungal creams, ointments, gels, sprays, powders or pills.