Ice is generally used for icing traumatic areas to reduce edema and hematoma. It is often used for sprains of ankles, wrists, contusions and blunt injuries in sports within 24 hours after the trauma occurs to reduce local bleeding and swelling. Ice can also be applied to some small surgical wounds to reduce pain, and can also be applied to swollen eyelids, for example, because the swelling caused by more tears, can make it go down faster. Ice can be used to physically cool down the body when there is a high fever, in order to quickly reduce the temperature of the body.