Further examination is recommended for deltoid muscle pain, and physical therapy such as physiotherapy and massage, medication such as ibuprofen and surgical treatment can be chosen according to different causes. 1. If the pain is caused by the accumulation of lactic acid due to inappropriate or excessive exertion, strenuous exercise, and muscle tension and spasm, it is recommended to pay attention to rest, and carry out local physiotherapy, massage and other physiotherapy. 2. If there is muscle strain and other serious injuries, it is recommended to take a triangle towel fixed, while you can choose to take ibuprofen, diclofenac sodium and other non-steroidal anti-inflammatory analgesic drugs to ease the symptoms. 3. If the muscle is found to be torn, or further examination reveals the existence of cervical spondylosis, resulting in nerve compression causing pain in the deltoid muscle area, it is recommended that surgical incision and closure of the internal fixation, surgical removal of protruding intervertebral discs and other treatments. It is recommended to go to the hospital in time for further examination to clarify the cause of the disease and carry out appropriate treatment under the guidance of the doctor. Drugs should be used according to the doctor’s prescription.