Cervical spondylosis causing left arm pain can be relieved by life management, medication and surgery. 1. Life management: head activities such as head bowing should be minimized, and appropriate bed rest can be taken to reduce the stimulation of cervical vertebrae and relieve the symptoms through rest. 2. Medication: Oral non-steroidal anti-inflammatory drugs, such as ibuprofen, can be taken to help control inflammation and relieve pain. Oral muscle relaxants, such as Eperisone, can also be taken, mainly used to improve muscle tension. 3. Surgery: When cervical spondylolisthesis compresses blood vessels, nerves and spinal cord, which seriously affects the normal life and work of the patients, and when conservative treatment is ineffective or recurs, or when the damage of spinal cord nerve function is progressively aggravated, surgical interventions, such as anterior decompression and fusion of cervical spine and posterior decompression, can be considered. It is recommended to use medication under the guidance of a doctor, not blindly self-medication to avoid adverse effects. If the symptoms of cervical spondylolisthesis causing left arm pain are not relieved, or accompanied by other symptoms, you should go to a regular hospital in a timely manner, to clarify the cause and then give targeted treatment.