Ice is used for patients with acute sports injuries, and the shorter the interval between ice packs, the better, and can be applied 4-6 times during the day after the injury. Ice can improve the local swelling, reduce local soft tissue bleeding, and promote the early reduction of swelling. The area of ice is mainly in the injury site and the peripheral 2-3 cm of skin. For patients who have the conditions, ice packs can be applied, or you can make your own ice packs by wetting a towel with saline and then freezing it in the refrigerator for a period of time before wrapping it in a plastic bag and covering the injured area for swelling treatment. It is important to note that ice packs can be applied with a thin layer of cloth between the skin and the ice pack to prevent the moisture on the surface of the ice pack from wetting the wound. And ice is only a simple treatment for the injury, but also according to the specific circumstances of the targeted treatment, can not use ice instead of specific treatment.