Trapezius muscle injury is often due to the back of the shoulder by pulling injury, or direct violent blow injury. Patients can’t handle it by themselves at this time, but should go to orthopaedic consultation in time, and cooperate with doctors to take measures such as brake rest, cold compress, topical medicine, oral medicine and so on. 1. Braking and resting: after this kind of injury, patients should try to keep bed rest. If necessary, the doctor will also use a shoulder sling or other devices to immobilize the affected shoulder. 2. Cold compresses: For the lesion area, ice should be used as soon as possible to apply cold compresses to the affected area to reduce local subcutaneous hemorrhage and aseptic inflammation. 3. Topical medication: As long as the skin in the lesion area is not broken, you can apply some medication that can activate blood circulation and remove blood stasis. Commonly used drugs include diclofenac sodium cream, Yunnan Baiyao spray and so on. 4. Oral medication: For patients with obvious pain symptoms, you can give them some non-steroidal anti-inflammatory drugs, such as commonly used diclofenac sodium, ibuprofen and so on. It is recommended that patients consult a doctor in time, follow the doctor’s instructions for treatment, do not blindly use drugs.