Coarse salt heat packs are usually done at night or before going to bed, there are no special rules. Generally, the time for applying the salt is about half an hour, so be careful not to burn the skin because of the high temperature or too long. As for the use of time, in fact, the time of coarse salt hot compress is no special provisions, generally in the evening or before going to bed can be. Coarse salt hot compress can play the role of pain, anti-inflammatory effect, also help to get rid of dampness. If the body appears shoulder pain, lumbar pain, stomach pain or the body’s dampness is relatively large and so on, you can take the method of hot compresses of coarse salt, can play a very effective role in relieving pain. In addition, hot compresses of coarse salt can not completely replace the treatment of drugs or surgery, can play a role in helping to relieve clinical symptoms. It is recommended that patients should seek medical attention as soon as possible to avoid delaying the best time for treatment.