Muscle pain on the lumbar side should be treated according to different causes, common causes include exertion, lumbar disc herniation, lumbar muscle strain, etc. Commonly used treatments include physical therapy, medication, surgery, and so on. 1. Exertion: After strenuous exercise or a lot of physical labor, lumbar muscle pain may be caused by exertion, which can usually be improved after rest. 2. Lumbar disc herniation: Lumbar disc herniation can be manifested as pain in the lumbar region, which should be rested in bed, and can be treated by traction, massage and other methods. If the pain is severe, you can take oral celecoxib and other non-steroidal anti-inflammatory analgesics. 3. Lumbar muscle strain: lumbar muscle strain will lead to lumbar muscle pain, can be relieved by appropriate exercise, can also be injected with corticosteroids, the pain is severe can be closed with procaine and other drugs for treatment. All of the above treatments and drug use should be carried out under the guidance of a professional doctor. Lower back muscle pain may also be caused by other reasons, if the pain can not be relieved or the pain is severe, you should go to the hospital in time to identify the cause and targeted treatment.