... can rapidly remove the pain and discomfort included be fever Cold/Hot pack To control and alleviate the gore and pain, also ... and discomfort induced by fever, headache,toothache.Usage:Cold compress: put the cold/hot bag into freezer to be refrigerated for ... time, and for 60 seconds when be used continuously. Purpose:Cold compress: physical therapy for traumatic hemorrhage, heatstroke, itch, headache, ...