There is a difference between the closure therapy done for patients with lumbar disc herniation and other local soft tissue closure therapy. The general closed therapy is the injection therapy for the lesion localization, and the closed therapy used by the patient with a herniated lumbar disc does not allow the needle to pierce into the localization of the herniated lumbar disc, which will only aggravate the symptoms and seriously stimulate the lumbar spinal nerve. The closed treatment for lumbar disc herniation generally refers to the drip treatment of the sacral foramen. The sacral fissure is at the junction of the fourth sacral vertebra and the fifth sacral vertebra, and the vertebrae at this location are generally not fused, forming a fissure that will be depressed when pressed, and this fissure can directly reach the epidural part of the spinal cord cavity. Saline, local anesthetics, hormones, and neurotrophic drugs are used to drip the drugs into the epidural through the puncture to eliminate nerve root edema, eliminate local inflammation, and reduce the patient’s pain.