There is no such thing as the fastest way to relieve lumbar side pain. Common causes include lumbar intervertebral disc herniation, lumbar muscle strain, urinary stones, etc., and general treatment, physical therapy, medication, and surgical treatment should be carried out according to the specific causes. 1. Lumbar disc herniation: when the lumbar disc compresses the nerve root on one side, it can lead to pain on the other side, which can be relieved by local massage, hot compress, lumbar spine traction, anti-inflammatory painkillers (such as celecoxib), and when it is serious, surgical treatment should be considered. 2. Lumbar muscle strain: long-term heavy labor or lumbar acute sprain, can also occur on one side of the back pain, at this time can be used to massage, hot compresses to ease the way, when the pain is serious, you can take anti-inflammatory painkillers (such as ibuprofen) treatment. 3. urinary stones: if kidney stones, ureteral stones, will also show a side of the back pain, this time the feasibility of surgical lithotripsy treatment to alleviate the symptoms of back pain. Lower back pain may also be related to other causes, should consult a doctor in time to clarify the cause, and standardized treatment under the guidance of the doctor.