Before performing hot compresses for cleaning, the area around the discomfort should be cleaned so that the hot compresses do not cause debris to enter the body tissues and cause infections. Before applying a hot compress, you can put a towel in hot water and then wring it out, place the towel on the area that needs to be heated, and then put a dry towel or cotton pad over it to be able to keep the heat continuously. In the hot compress, should pay attention to the water temperature between 40 to 45 degrees, so as not to cause burns and other discomfort to the hot part of the compress, each time in the affected area around the hot compress between 15 to 20 minutes. Hot compresses can promote local blood circulation, dilate blood vessels, promote local metabolism, etc., to relieve muscle spasms, and promote the absorption of inflammation and bruises have a certain degree of help. When applying hot compresses, attention should be paid to keeping warm, replenishing water in time and controlling the temperature of the hot compresses.