Cold packs are used to relieve pain, swelling, and inflammation from injuries and other conditions, such as arthritis. They can be used to treat acute injuries, such as ankle sprains, to minimize swelling and control pain. Cold packs can also be used for chronic conditions, such as overuse injuries in athletes, to control inflammation. Cold numbs the affected area, which can reduce pain and tenderness, and can also reduce swelling and inflammation. Cold packs can be made by soaking a clean cloth or towel in cold water, using a bag of ice or frozen vegetables wrapped in a dry cloth, or using commercial cold packs. It is important to always keep a cloth between the skin and the cold pack, and to press firmly against all the curves of the affected area. Cold should not be applied for longer than 15 to 20 minutes at a time, and commercial cold packs are too heavy and bulky for use on or around the eye.