Whether or not moxa pillar smoke is harmful to the human body has to be decided on a case-by-case basis. Normal therapeutic effects generally do not cause harm to the human body, if a long time moxibustion, smoke is inhaled into the lungs, easy to cause some harm, such as choking. 1. Ai column smoke is mainly moxibustion process of the combustion of moxa columns formed smoke, usually does not cause adverse effects on the human body, and the smoke and the heat generated by the stimulation of local acupuncture points, can play a certain role in blood circulation (to promote the blood run, eliminating the body of blood stasis), dredge the meridian effect on the body’s health benefits. 2. If a long time high concentration of moxa column smoke is inhaled into the respiratory system, it is easy to lead to irritation of the respiratory mucosa choking symptoms, is not conducive to good health. It is recommended that moxibustion treatment usually go to a regular hospital, operated by a professional doctor, strict control of moxibustion time, to ensure that the treatment is safe.