Reusable Ice Bag Hot Water Bag for Injuries, Hot and Cold Therapy and Pain Relief (Color: Assorted)Reusable Ice Bag Hot Water Bag for Injuries, Hot and amp; Cold Therapy and Pain Relief For cold therapy, simply fill with ice cubes and a little water to relieve discomfort. For hot therapy, just add some hot water (not boiling) and apply to the needed areas. Can be used for Cold or Hot therapy, cold therapy can be used for headache, fever, toothache, sprain, bruises, bumps and other sports injuries while hot therapy can be used for muscle pain and