Infrared therapy has many functions, including reducing swelling and anti-inflammation, relieving pain as well as promoting wound healing, etc., and it has good curative effect on its indications. 1. Improve local blood circulation, infrared irradiation can cause vasodilatation, increased circulating blood volume, active metabolism, enhanced immune function, which can promote the absorption of exudate, edema elimination, inflammation dissipation. 2. Reduce the excitability of sensory nerves to relieve pain and muscle spasm. 3. Promote the growth of granulation and epithelium to accelerate wound healing, loosen adhesion, reduce scar contracture, accelerate blood flow to promote metabolism, enhance cell regeneration, accelerate wound healing, anti-inflammatory and pain relief. Suitable for sprains and contusions, testicular sheath effusion, intestinal spasm, infantile diarrhea, chronic bronchitis, the absorption stage of inflammation, chronic stabilization of arthritis, neuralgia, neuritis, delayed wound healing, postoperative adhesions, scarring and so on. Contraindicated in patients with tumor, high fever, acute sprain and contusion within 24 hours. Use with caution in patients with bleeding tendency and local warmth sensory disorder. Patients are advised to use it under the guidance of doctors and standardized operation to avoid injury.