Generally speaking, if you use moxibustion at the Baihui point and operate it in a standardized way, the possibility of side effects is small. If the operation is not appropriate may lead to burns, allergy may be allergic to moxibustion phenomenon, moxibustion too many times may also appear dry mouth and other fire manifestations. 1. Burns: Improper handling of moxibustion may cause localized burns, especially in patients who are unresponsive and insensitive to local sensations. If localized burns are not well maintained, localized infections may occur. Moxibustion operation process need to maintain a suitable distance, moxibustion temperature to the local warm, skin flushing appropriate, moxibustion time mastered in 10-20 minutes appropriate. 2. Allergic reaction: allergic patients in the moxa burning, inhalation of moxa leaves in the moxa burning smoke or contact with the burning ash, etc., allergic reactions may occur, mainly manifested as dizziness, headache, itching, nausea and so on. 3. Fire: moxibustion time is too long, or too much moxibustion, too frequent, too long a course of treatment, etc., easy to cause fire, the patient will have a dry mouth, dry nose, swollen gums, dry throat, and even intestinal dryness, constipation and other phenomena. Moxibustion should be carried out under the guidance of a professional physician, not blindly moxibustion, discomfort should be timely to the hospital, standardized diagnosis and treatment, so as not to delay the condition.