Wash the rash with soap and water, and dry thoroughly. For large areas of blistered sores, use compresses such as those made with Burow's solution (available without a prescription) to soothe and dry out the blisters.
Apply antifungal cream beyond the edge or border of the rash.
Follow the directions on the package. Don't stop using the medicine just because your symptoms go away. You will probably need to continue treatment for 2 to 4 weeks.
If symptoms do not improve after 2 weeks, call your doctor.
If your rash does not clear after you have tried different topical antifungals, or if the infection is widespread, you may need prescription antifungal pills.
If you have both athlete's foot and ringworm of your groin or legs, you should treat both infections. This will prevent you from re-infecting your legs or groin with the athlete's foot fungus, when you put on your underwear.