Sciatic nerve pain plasters are applied in two places: one is the lumbar region; the other is the area of pain. Sciatic nerve pain is due to a herniated disc compressing the nerve and causing pain, so even if there is no significant pain in the lumbar area, you should put plasters on the lumbar area. The site where the plaster is applied is the site where the belt is usually tied, and the right one is the location of the lumbar 4, 5 and lumbar 5 and sacral 1 intervertebral discs. The location of the pain, sciatica is manifested as pain in the buttocks, the back of the thighs, the outer calves, the soles of the feet and the back of the feet. Pain and numbness discomfort in these areas can be relieved by applying plasters to these areas. Therefore, with sciatica, the plaster is mainly applied to the location of the source of the disease (the lower back) and the location of the pain response (the specific area).