The efficacy of hot compresses with mugwort sachets includes unblocking the meridians, dispersing cold and dampness, and relieving pain, but the efficacy is limited. The main place in the mugwort bag is mugwort, mugwort is warm and belongs to the Chinese herbal medicine, so the use of hot compresses with mugwort bag can play a role in unblocking the meridians through warm stimulation, dispersing cold and dampness, pain and other efficacies, which can alleviate the cold abdominal pain, lumbar and knee pain, muscle spasms and other illnesses. In addition, hot compress is a common physical therapy measures, has to improve blood circulation, dilate blood vessels, promote the role of local metabolism, if there is active bleeding, you need to avoid the use of hot compresses of mugwort packs. To summarize, when the body appears to be unwell, must go to the hospital for medical treatment, under the guidance of a professional doctor to use moxa packs for hot compresses to regulate the body.