Neck pain on the left side of the neck may be a pillow, cervical spondylosis, rheumatism and other conditions, patients need to follow the doctor’s instructions for drug treatment, surgical treatment, other treatments. 1. Falling pillow: patients need to pay more attention to rest, if the pain is unbearable, need to comply with medical advice to use ibuprofen, diclofenac and other non-steroidal anti-inflammatory drugs. Patients can also carry out local hot compresses, reasonable neck exercise, etc., to promote recovery. Some patients can also be appropriate local massage to relieve symptoms. 2. Cervical spondylosis: patients can take the above non-steroidal anti-inflammatory drug treatment as prescribed by the doctor, which can be combined with the use of myorelaxants such as etoperisone, vecuronium bromide and other muscle relaxants, as well as eszopiclone, clonazepam and other tranquilizers for treatment. If the conservative treatment is not effective, the patient needs to choose to carry out anterior surgery or posterior surgery under the guidance of the doctor. 3. Rheumatism: In addition to the above NSAIDs, patients can also be treated with glucocorticosteroids such as prednisone and hydrocortisone, as well as antirheumatic drugs such as methotrexate and hydroxychloroquine. Some patients also need to combine the use of biologics such as belimumab and abatacept to control the progression of the disease. It is recommended that patients with symptoms of left-sided neck pain should consult a doctor in time and take reasonable treatment measures according to the cause of the disease, rather than blindly using medication.