Hite light radiation body tissue mainly produces warming effect, is a kind of high energy light wave, this light energy can make albumin, immunoglobulin synthesis increase, play tissue repair and immune regulation; also can reduce the number of 5-hydroxytryptamine and other pain-causing mediators, to achieve pain relief effect. Our department is currently using the leading German original imported Hitech light therapy machine at home and abroad, which has the characteristics of wide irradiation area, strong penetrating power and no thermal burns on the surface. At present, it is mainly used in the treatment of frozen shoulder, tennis elbow, neck and back fasciitis, lumbar detachment, chronic sprain and contusion, allergic rhinitis, etc.