therapy Gel Packs,cold pack,ice pack ideal for cold therapy or heat therapy in treating minor scrapes and bruises, muscle aches and sprains, headaches, toothaches, minor burns, and insect bites. Helps reduce pain and swelling. Cold Use: Provides cold therapy which temporarily relieves minor pain and swelling Hot use: Provides heat therapy which temporarily relieves minor muscle and joint pain, stiffness and muscle spasm.