Three months after surgery, back pain may be physiological pain, can be relieved with time; may also be the result of drug absorption under general anesthesia, can be appropriate oxygen intake, while oral medication for relief. 1. Self-relief: three months after surgery, back pain, may be physiological pain, can be gradually relieved with the extension of time, generally do not need special treatment. 2. Oxygen: the absorption of drugs under general anesthesia can also lead to back pain, you can appropriate oxygen to relieve symptoms, drink more water to promote drug absorption and metabolism. 3. Oral medication: you can also take some oral pain medication, such as ibuprofen extended-release capsules. All of the above drugs should be used under the guidance of a doctor, three months after the operation, back pain persists without relief, it is recommended that the patient consult a doctor in a timely manner, for targeted treatment.