Pain in the lumbar region after accidentally flashing when bending over is mostly considered to be an acute lumbar sprain, such as a sprain of the lumbar muscle or synovitis of the small joints of the lumbar spine. It is recommended that the patient rest more, do not do strenuous activities, and do not do the posture that causes pain, to bed rest or rest in a painless position is better. The main function of hot compress is to promote local blood circulation, relieve local sterile inflammation and swelling, and reduce pain. When the pain is obvious, topical pain relief creams can be applied locally, such as diclofenac sodium cream or compound Nanxing pain relief cream. After hot compress and rest, if the pain is not relieved, you can do local physical therapy, such as massage, massage or oral non-steroidal anti-inflammatory drugs, such as Intazing and Ciloxel, etc.