Hot compress with moxa salt is effective for those with cold constitution, and the effect for those with yin deficiency constitution, solid heat constitution or yin and yang deficiency is subject to reference, the specific effect depends on individual constitution. Ai salt is a kind of mineral salt, Ai salt hot compress can be used as a kind of conditioning method in daily life, Ai salt hot compress can activate blood circulation and remove blood stasis (promote blood circulation and eliminate blood stasis in the body), which can achieve the effect of relieving fatigue and pain. When applying hot compresses with mugwort salt, it is necessary to pay attention to the temperature of the hot compresses, and the temperature is recommended to be controlled at about 40℃, so as not to burn the skin because of too high a temperature. In addition, when using hot compresses with moxa salt, it should not be applied directly to the skin, but should be separated from the skin by a layer of towels and other things. If the patient suffers from warm fever, acute trauma combined with bleeding, acute inflammation, in the case of uncontrolled conditions should not be carried out in the case of hot compresses of moxa salt. If the elderly, children need to carry out hot compresses of moxa salt, you need to pay attention to the temperature of the hot compress to avoid burns. Whether or not to choose the final use of salt compresses, need to be in the physician to determine the basis of physical condition, not blindly selected.