Mugwort hot compress has a certain effect on the treatment of lumbar disc herniation. Lumbar disc herniation can be treated conservatively and surgically, and in conservative treatment its physiotherapy, hot compress and traction, all have a certain effect. The mugwort hot compress is mainly through two aspects of the lumbar disc to play a certain curative effect: First, from the perspective of Western medicine, hot compress can make the edema around the nerve root reduce, so there is a certain effect of reducing the edema of the nerve root. Second, from the perspective of Chinese medicine, mugwort can penetrate through the meridians and skin around the lumbar disc, which can play the role of relaxing the tendons and blood, activating blood circulation and relieving pain.