Jock itch is most commonly treated with over-the-counter anti-fungal powders and creams, according to WebMD. Rashes that develop from jock itch should be washed daily with water and soap, and the anti-fungal cream and powder should be applied on and around the rash area.
When blisters develop as a result of jock itch, patients can apply a compress to dry out the blisters and reduce the pain, explains WebMD. The inner thighs, buttocks and groin should be kept dry, especially after exercise and showers. To prevent jock itch irritation, clothes, underwear, socks and towels should be washed after each use, and shower shoes should be worn in locker rooms and public showers. People with athlete's foot should dry the feet thoroughly after showers to prevent the infection from spreading to the groin.
Jock itch is a fungal infection and a form of ringworm, according to WebMD. The fungi grows on the top layer of the skin and most commonly affects moist and warm areas of the body, such as the buttocks, groin and inner thighs. Ringworm that develops on the skin produces rashes and skin that is itchy, red or peeling. Rashes from jock itch form a red-brown color and may include bumps on the skin that look like blisters.