Patients after lumbar sprain need to actively apply hot compresses, 48 hours after the injury. The main purpose of hot compresses is to promote local blood circulation, so as to effectively improve the local swelling and pain symptoms. Usually, hot compress with salt bag, hot water bag or fried bran, 2 times/day, more than half an hour each time, is very effective. In addition, it is necessary to wear a lumbar belt to protect the local area, to rest, to avoid prolonged sitting and standing, to avoid excessive bending to carry heavy things or lifting heavy objects, and to sleep on a hard bed as much as possible. If the patient is not allergic to plasters, he can use topical plasters to activate blood circulation and resolve blood stasis, such as blood circulation and pain, Yunnan Baiyao plaster, dog skin plaster, and will slowly recover.