Gel Hot and Cold Pack,ice pack,gel pack for hot and cold therapy: 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 therapy: Provides cold therapy which temporarily relieves minor pain and swelling Hot therapy: Provides heat therapy which temporarily relieves minor muscle and joint pain, stiffness and muscle spasm.