Cooling Patch for fever is a kind of physical cooling paste which uses the international popular TDDS technology to make water molecules penetrate into the skin and then reduce the body temperature through the physical changes of water vaporization and endothermic heat. Product presentation： 1.The main structure consists of: This product is composed of cooling substances and fixing appliances. The cooling material is composed of gel layer (hydrophilic polymer gel as carrier, mixed natural plant menthol), and the cooling substance does not contain volatile pharmacology, immunology or metabolism. 2.Product specifications:TRT-A，TRT-B,TRT-C,TRT-D. TRT-A is early childhood type. TRT-B is child type. TRT-C is adult type.TRT-D is general type. 3.Scope of application:It is used for cooling a specific part of the surface of a human body, and is used for closed soft tissue only.