Smoke from moxibustion is generally harmless in small amounts, but excessive inhalation can be harmful. The smoke from moxibustion is harmful depending on the level of inhalation. Moxa smoke is generally harmless within a certain concentration. However, the burning of moxa leaves produces aromatic hydrocarbons, the concentration of which is too high and can cause harm to human health. Because the concentration of the drug cannot be controlled and the harmful substances in the smoke cannot be eliminated, patients are usually not advised to use moxa smoke for treatment. If the patient himself suffers from respiratory disease, the smoke of moxibustion will have an irritating effect on the respiratory tract, causing coughing, and in severe cases, even suffocation. If you need moxibustion treatment, be sure to do it under the guidance of a professional physician and pay attention to the ventilation of the room, do not operate blindly on your own.