Pain on the left side of the neck above the clavicle should be selected according to the specific cause of the appropriate treatment, which may be long-term bad posture, nerve root cervical spondylosis and so on. You can change the bad posture, medication, surgery and so on. 1. Long-term bad posture: Long-term bad posture will pull or compress the local muscles, this situation does not need special treatment, it is recommended to change the bad posture, do not play the cell phone or look at the computer for a long time, and go to the outdoors to do sports. 2. Neurogenic cervical spondylosis: long-term damage to the cervical spine or disc herniation can lead to nerve root and vertebral artery compression and dysfunction, you can wear a cervical spine brace to reduce neck activity, use cloxazone, tizanidine to relax the muscles, or oral acetaminophen, celecoxib, etc. to ease the pain. Use specialized traction methods to improve compression. If conservative treatment is not effective surgery is needed, including anterior access surgery and posterior surgery. Neck pain on the left side of the neck above the clavicle, you should go to the hospital for a detailed examination, for the cause of the treatment, if you need to use medication is recommended to follow the doctor’s instructions.