Lotrimin® AF Antifungal Powder Spray. Powder spray goes on dry. Miconazole nitrate. Clinically proven to cure most athlete's foot. Relieves itching, burning, cracking & scaling. This formula is not sold to any retailer as a private label or store brand. Uses. Proven clinically effective in the treatment of most athlete's foot (tinea pedis), jock itch (tinea cruris) and ringworm (tinea corporis). For effective relief of itching, cracking, burning, scaling and discomfort. Questions 1-866-360-3266. ©Copyright & Distributed by MSD Consumer Care, Inc. A subsidiary of Merck & CO. Inc., Whitehouse Station, NJ USA. All rights reserved.