- For Cold Therapy:
1. Place the pack in freezer for at least one or two hours. Remove from freezer and apply to the injured area. The pack stays flexible at subfreezing temperature to conform to the injured area. Store in freezer when not in use.
- For Heat Therapy:
1. Place the pack in a microwavable container, covered with water. Heating time may vary depending on wattage. Heat the pack at full power for two minutes (time based on 500 watt microwave). Remove and test before using. Do not heat the pack for more than two minutes.