Abstract: The use of a solution of oleic acid, acetone, ammonium hydroxide and water as a treatment of athlete's foot and ringworm. The treatment comprises a topical application of the solution or for cases of acute athlete's foot, soaking the affected members in a diluted solution. The solution comprises about 4 parts oleic acid mixed with acetone. The oleic acid and acetone mixture is then mixed with 8 parts of aqua ammonia (ammonium hydroxide) to form a concentrated solution. This concentrated solution is then diluted with 128 parts of water for soaking applications and 32 parts water for topical applications.