new deep freeze cold patch is a brand new cooling therapy for sports injuries. Each self-adhesive patch acts quickly to cool the injured area, reduce swelling and help beat the pain. In minor injuries it can help the healing, too. deep freeze cold patches use a special hydrogel coating which contains water, menthol and aloe vera. Evaporation creates a lasting cooling effect which reduces nerve conduction in local pain receptors. The cooling effect also helps reduce the need for oxygen in the surrounding undamaged tissue which, in turn, promotes faster recovery.