Cold compresses are mainly carried out using ice water mixture, the specific methods are as follows: First, continuous cold compresses: if the patient can tolerate cold, it is best to use ice water mixture, while covering the skin with a towel for continuous cold compresses, in order to make the swelling, pain and other symptoms can be quickly relieved, usually three consecutive days of cold compresses can make the patient’s symptoms significantly reduced, do not cold compresses during sleep, otherwise it may cause frostbite. Second, intermittent cold compresses: If the patient can not tolerate cold, you can also use intermittent cold compresses, each cold compress 30 minutes, rest 30-60 minutes before continuing cold compresses, completed 6-8 times a day, can make the swelling, pain and other symptoms are reduced, but its therapeutic effect is worse than continuous cold compresses. Cold compresses must be well timed to avoid frostbite of the soft tissues of the skin caused by continuous cold compresses, especially in the process of sleep.