Chronic strain back pain can be improved through medication, physical therapy, functional exercise and correct posture. The details are as follows: 1. Drug treatment. It can be taken orally as a Chinese patent medicine for tonifying liver and kidney, strengthening muscles and bones, or as a non steroidal anti-inflammatory drug, which can be selected according to needs. 2. Physical therapy. Patients can be treated by acupuncture, physiotherapy, manual massage, proper hot compress, infrared ray, Chinese medicine introduction, etc. 3. Functional exercise. The patients can activate blood circulation, remove blood stasis, relax tendons and collaterals, relax muscles, relieve spasticity pain and other purposes through functional exercise of the waist and back muscles. If the patients can exercise the waist and back muscles through Xiao Yanfei and five point support, the pain in the waist can be effectively alleviated. 4. Be upright. Try to avoid not changing your posture for a long time, and often get up and exercise. When sleeping, you should sleep in a hard bed, not a soft bed.