Infrared irradiation therapy is a physical therapy method commonly used in dermatology, it is recommended that each irradiation time should not exceed half an hour, and can be taken 3-4 times a day. When irradiating, pay attention to the distance between the infrared ray and the skin, so that the skin can feel a mild warm sensation, do not be too close, too long irradiation time can also easily lead to skin burns, although the heat effect gradually accumulates, but if the time spent shining can appear skin burns. The main role of infrared therapy is to help improve local blood circulation, promote cellular metabolism, promote the repair of skin ulcers, relieve local muscle pain, and also help reduce swelling and anti-inflammatory effects. However, infrared therapy is an auxiliary physical therapy and cannot replace formal treatment. If the skin has ulcers, the effect of using infrared radiation alone to help repair them is too slow and limited. Therefore, it is more appropriate to define the specific skin problem and choose the appropriate treatment method, together with infrared radiation. When treating neck joint pain with infrared radiation, it is best to wear tinted glasses or use wet gauze to cover the eyes to reduce the damage of infrared light to the eyes. At the same time, attention should be paid to rest during the treatment period, avoiding overexertion and strenuous activities, so as not to affect the treatment effect.