... first-aid for every family in daliy life.c) Cold Compress: physical therapy for traumatic hemorrhage, heatstroke, itch, heatache,strain ... ,scald and fatigue.d) Hot Compress: alleviate rheumatic pain,neural pain,sciatica, vertebral pain,improve mucous ... membrance scar after surgery.2.Instructions:a) For cold compress: put the cold/hot bag into freezer to be ...