Left lumbar pain is considered to be related to lumbar sprain, lumbar muscle strain, lumbar disc herniation, kidney stones, etc., and can be treated with medication and physical therapy. 1. Lumbar sprain: lumbar pain requires bed rest, local ice packs, you can also take oral non-steroidal painkillers, such as nimesulide dispersible tablets or diclofenac sodium enteric-coated tablets, but also ultrasound physiotherapy or neuromuscular stimulation treatment. 2. Lumbar muscle strain: massage, oral lumbar pain capsule or lumbar paralysis capsule, also can be used in medium frequency pulse electro-physical therapy. 3. Lumbar disc herniation: lumbar traction, acupuncture and physiotherapy, if the compression of the nerves can be taken orally nutritive drugs, such as methylcobalamin, but also oral non-steroidal painkillers, such as celecoxib capsules. 4. Kidney stones: If the stones are relatively large, you can perform extracorporeal shock wave lithotripsy, which is conducive to the discharge of stones and relieve pain. When the left lower back pain occurs, should go to the hospital in time, under the guidance of the doctor for treatment.