There is no such thing as the fastest way to relieve back pain, according to the degree of injury should be given rest, physical therapy, medication and other methods to promote the recovery of lumbar sprain. 1. Rest: After the lumbar sprain should be bed rest, avoid bending and weight bearing, at the same time pay attention to keep warm, do not get cold. 2. Physical therapy: lumbar sprain can be through hot compresses, massage, massage, ultrashort wave and other physical therapy methods, relax the lumbar muscles, promote local blood circulation, relieve pain symptoms. 3. Medication: Oral non-steroidal anti-inflammatory and analgesic drugs, such as Celecoxib, Erythroxib, ibuprofen, diclofenac sodium, etc., can be taken under the guidance of a doctor, and can also be applied externally with ointment, such as diclofenac diethylamide latex, to relieve local pain. If the pain after the lumbar sprain can not be relieved, it is recommended that the patient go to the hospital in a timely manner to identify the cause and targeted treatment to avoid delays in the condition.