The cause of low back pain may be caused by lumbar muscle strain. Left back pain can be relieved by hot compress and massage. The cause of left back pain may also be caused by sitting and working for a long time. You can use some drugs to promote blood circulation and remove blood stasis for adjuvant treatment. If the feeling effect is not obvious, you can also use acupuncture and moxibustion in traditional Chinese medicine, and be careful not to let your waist catch cold.