The main symptom of lumbar fork is the sudden onset of severe pain in the lower back, the nature of the pain is mainly like a cramp pain, and the pain can be aggravated when moving or coughing hard. The main treatment is rest, usually bed rest, avoiding sitting up or standing up, and avoiding activities such as lifting things by force. In addition, local ointment can be applied to the painful area to relieve swelling and pain, and to activate blood circulation and remove blood stasis. If the pain is severe, you can also give some oral non-steroidal anti-inflammatory drugs, which can have a pain-relieving effect. If possible, you can go to the hospital for physical therapy, such as infrared therapy, microwave therapy, medium frequency pulse electric therapy, etc. Appropriate massage is also helpful for the recovery of pain.