The efficacy of salt hot compress therapy is mainly to warm the meridians and dissipate cold (warming the meridians of the human body to get rid of the coldness in the body), activate blood circulation and so on. Hot compress with salt means using the heat of salt to accelerate the speed of blood flow, improve local circulation, and play the role of activating blood circulation and removing blood stasis (promoting blood circulation and eliminating blood stasis in the body), warming the meridians and opening up the channels. Suitable conditions include lumbar muscle strain, lumbar pain caused by lumbar disc herniation, cervical pain, menstrual pain, etc. It belongs to the evidence of cold-dampness, deficiency cold, Yang deficiency, etc., with symptoms such as cold fear and coldness, abdominal distension and abdominal pain. Precautions: Yin deficiency and fire (deficiency of yin and essence in the body, resulting in hyperactive deficiency and fire), dampness and heat within the crowd is not suitable, and patients with rashes and skin lesions should not be used. Hot compresses with salt bags, be sure to maintain a suitable temperature to avoid burns, after the hot compresses, pay attention to consume light and warm food, less cold drinks and so on. If there is any discomfort and treatment is needed, please go to the hospital and operate and choose the appropriate treatment method under the doctor’s guidance.