How to use:
For cold therapy, freeze gel pack at least 2 hours in freezer before using
For heat therapy, put gel pack flat in microwave oven to heat, the heating time depends on different items.
Cold therapy for: Joint/muscle injuries, Back/neck pain, Arthritis, Sinus/stress headache, Post-surgical pain, Sunburn/other burns, etc.
Heat therapy for: Muscle pain/soreness, Muscle spasms/ cramps, Arthritis, Menstrual cramps, Chronic neck or back stiffness, etc.