Rapid recovery methods after a back flash include bed rest, physical therapy, oral medication and rehabilitation training. Lumbar sprain is mainly an acute sprain of the soft tissues of the lumbar region, which is characterized by obvious pain and discomfort, and activity limitation. After the lumbar sprain needs to stop activities, bed rest, avoid activities to make the condition relieved, you can massage, massage, acupuncture and other physical therapy. If the pain is serious and not relieved, you can follow the doctor’s instructions to take oral pain relieving and anti-inflammatory drugs such as Erythroxib, ibuprofen, etc., but pay attention to long-term use of such drugs can cause liver function damage, cardiovascular system damage, gastric ulcers and other side effects. After the pain is relieved, rehabilitation training such as slow walking and swimming can be carried out, which is conducive to rapid recovery. It is recommended that patients go to a regular hospital, under the guidance of the doctor’s treatment and rehabilitation training, do not blindly use drugs.