The best antifungal medicines to treat jock itch contain terbinafine, miconazole or clotrimazole, according to WebMD. It is important to wash the affected area with soap and water before applying the antifungal cream or powder.
Jock itch is a form of ringworm, though that name is misleading: Ringworm is a fungus rather than a worm. Symptoms of jock itch include itching, pain and rash. The edge of the rash is distinct because it has bumps, blisters or scales. Fungi grow best in warm, moist environments which is why people prevent it by keeping the groin, inner thighs and buttocks clean and dry, explains WebMD. Another tip to avoid this condition is to wash workout clothes after each use.