Lumbar disc herniation injection can significantly relieve pain, simple, convenient and effective, but should not be used frequently, and closed treatment can not cure the disease. Lumbar disc herniation is a relatively common disease, often due to sedentary, lumbar overweight caused by disc herniation, thus compression of the nerve root caused by lumbar and leg pain and other symptoms, the treatment includes physical therapy, closed treatment, drug treatment, surgical treatment and so on. Closure therapy is the injection of hormones (such as dexamethasone) and local anesthetics (such as lidocaine) into the painful area to provide analgesic and anti-inflammatory effects. Used for lumbar disc herniation, it can effectively relieve pain and is easy to operate, but long-term application will have adverse reactions and does not cure lumbar disc herniation. When lumbar disc herniation occurs, it should be standardized under the guidance of a doctor, and the closed injection should also be carried out by a professional doctor.