Lumbar flash is an acute injury to the muscles and soft tissues of the lumbar region under the action of external forces, which can be treated by general treatment such as bed rest, physical therapy such as cold compresses and the use of pain medication to relieve pain. 1. General treatment: such as bed rest, wearing a waist cuff and other methods to avoid lumbar activities to reduce the pull, can help patients reduce pain. 2. Physical therapy: cold compresses can be applied within 72 hours of the flashback, which can reduce local pain and edema and relieve local pain. After 72 hours, hot compresses, microwave and other physical therapy can promote local blood circulation, promote edema absorption and reduce pain. 3. Medication: including oral medication such as ibuprofen, celecoxib, lorsoprofen, etc., topical medication such as indomethacin cream, diclofenac ointment, etc., and injectable medication such as tramadol, flurbiprofenate, etc., which are more serious in terms of pain. All of the above drugs have different degrees of side effects and are recommended to be used under the guidance of a doctor. Patients with flashing backs are advised to consult a doctor in time, complete relevant examinations, clarify the degree of injury, and take regular treatment measures, not just pain relief.