Oppo Foam Oval Corn Pad protects against pressure on localized foot areas. corns Pad for long lasting pain relief. Eases painful shoe pressure and friction. Soft latex foam. Would not 'catch' on hosiery. Self-stick, waterproof adhesive holds cushion in place. Cushion and protect corns. DIRECTIONS:. Wash and dry feet thoroughly. Carefully remove cushion from backing and apply with hole directly over the small corn or tender spot. For best results repeat daily.