Wash the affected area with soap and water and dry thoroughly. Apply sparingly over affected area twice daily (morning and night) or as directed by a physician. For athlete's foot pay special attention to spaces between the toes. wear well-fitting ventilated shoes and change shoes and socks at least once daily. For athlete's foot and ringworm use daily for 4 weeks. for jock itch use daily for 2 weeks. If condition persists longer, consult a physician.