Silka athlete's foot cream provides full prescription strength relief from the itching, burning, cracking and scaling associated with athlete's foot. Formulated with terbinafine it cures most athlete's foot in just one week treatment, compared to 4 weeks of treatment for some other OTC antifungal products. Read labels to compare. Complete cure may take several weeks. HSA/FSA EligibleRestrictions apply; contact your insurance provider about plan allowances and requirements.