1. Promote the dissipation and limitation of inflammation: Hot compress with salt bag in the late stage of inflammation can promote the release of proteolytic enzymes from white blood cells and limit inflammation.
2. Relieve pain: Salt bag hot compress can reduce the excitability of noxious nerves, improve blood circulation, accelerate the discharge of noxious substances and the absorption of inflammatory exudates, and relieve the stimulation and oppression on nerve endings, thus relieving pain. At the same time, salt bag hot compress can relax muscles, increase the range of motion of joints, and relieve the pain caused by muscle spasm, stiffness and joint stiffness.
3. Warm and comfortable: salt bag hot compress can dilate local blood vessels, promote blood circulation, spread the tropics to the whole body, raise body temperature and make patients feel comfortable.