Arm muscle strain treatment methods include general treatment, plaster or brace fixation, drug treatment, surgical treatment, there is no clear “best” method, according to the patient’s condition to give the appropriate treatment, as follows: 1. General treatment: stop the movement immediately, let the affected part be in a static state, apply cold compress to reduce the pain, apply pressure bandage to reduce the bleeding and bruising phenomenon in the affected part, and elevate the arm to the position higher than the heart. 2. Plaster or brace immobilization: immobilization of the arm by plaster or brace can help to reduce or eliminate the weight-bearing of the affected limb. 3. Medication: Non-steroidal anti-inflammatory drugs (NSAIDs), such as naproxen and ibuprofen, can be used to relieve pain. 4. Surgery: For serious muscle strains, tears or even ruptures, surgery can be used to repair the injury. It is recommended that people with muscle strains in the arm consult a doctor in time, under the guidance of the doctor’s standardized treatment, not self-medication.