It is recommended to lie flat on your back if you have a lumbar flash. The common clinical causes of lumbar spasms are weak lumbar muscles or disorders of the small joints of the lumbar spine. After the lumbar flash usually need to rest for a period of time to recover, rest position try to choose lying down, and should be in the lumbar part of the following pad with a soft pillow, which can reduce the lumbar force, so that the lumbar part is in a fixed state, can effectively alleviate the pain, to avoid secondary injuries. It is not recommended to lie on your back after a lumbar flash, because lying on your back for a long time will cause pressure on the lungs and heart, and the stability of the lumbar spine is not enough when you turn over. If the patient’s back pain continues to be unrelieved after the lumbar flash, it is recommended to consult a doctor as soon as possible for a clear diagnosis and targeted treatment.