WellPatch Migraine Cooling Headache Pads are now improved to provide immediate and long-lasting cooling relief that lasts up to 8 hours. Large 2 inch by 4.3 inch pad covers a broader area on your forehead. Use when you feel discomfort from a migraine or headache for cooling, soothing relief. WellPatch Migraine Cooling Headache Pads are precisely designed cloth pads infused with a soothing water-based gel. Simply peel off the protective film and apply the pad to your forehead when you feel the discomfort from a headache. Gel core provides cooling action that lasts up to 8 hours. Soft, flexible patch stays comfortably in place. Lighly scented with Menthol and Lavender Oil. WellPatch Migraine Cooling Pads are druf free so they won't interact with other medications. 4 patches per box.