Fever Hydrogel Cooling Patchis a soft gel strip that has been especially designed to relieve discomfort from fevers and other minor ailments with a powerful cooling effect that lasts up to 10 hours. Cooling Patch contains non-medicated ingredients in a soft Hydrogel which make it safe to use with medication and works by absorbing heat quickly from the body. The soft gels stripe are convenient to use anywhere, are self adhesive to the skin and do not need refrigeration. Cooling Patch also works well for headaches, migrane, toothache and some muscles.