Coarse salt fried hot to do hot compresses as a form of physical therapy, its efficacy role is limited, generally not able to cure the disease. Coarse salt fried hot, wrapped in gauze, put in the painful parts of the hot compress, can effectively relieve pain. Because of the high temperature of coarse salt, the heat can penetrate into the deeper layers of the body and promote blood circulation, thus achieving the effects of activating blood circulation and removing blood stasis (promoting blood circulation and eliminating blood stasis in the body), and clearing collaterals and relieving pain (dredging the meridians and channels and relieving pain). Chinese medicine believes that the cold condensation meridians, not through the pain, crude salt fried hot to do hot compresses, can assist in the treatment of cold caused by the neck, shoulder, waist and leg pain pain and soreness of the syndrome. Can achieve wind dispersal of cold, through the role of pain, relieve local symptoms. But coarse salt fried hot to do hot compresses is just a way of physical therapy, its efficacy is limited, generally not able to cure the disease. Coarse salt fried hot to do the role of the efficacy of hot compresses is limited, can not replace the role of drugs or other therapies, such as discomfort, it is recommended to consult a doctor.