STOP THE SPREAD of athlete’s foot fungus! If untreated, Athlete’s Foot can spread across the foot, lead to nail fungus, and potentially affect other areas of the body. Lamisil Athlete’s Foot cream is the 1 Doctor Recommended brand to relieve athlete’s foot symptoms, destroy the fungi, and prevent recurrence for up to 3 months. Lamisil cures athlete’s foot in as little as one week of daily use. The active ingredient of Lamisil is prescription Terbinafine Hydrochloride 1% Cream – a highly effective antifungal cream that directly targets the tinea pedis fungus that causes the itching, burning, painful cracking, scaling, and redness of athlete’s foot.