How long moxibustion takes is usually determined by the patient’s condition and cannot be generalized. Moxibustion can treat disease, health care, blood circulation, warming and dispersing cold. If it is for health care and maintenance, moxibustion should not be too long, moxibustion once a day, each moxibustion 20-30 minutes, local feeling slightly warm can be, usually about 1 week for a course of treatment. For longer-term diseases, or deficiency cold diseases, such as dysmenorrhea, deficiency cold diarrhea, ankylosing spondylitis, moxibustion often takes longer, moxibustion must use heavy moxibustion, usually to more than 40 minutes, or even let the heat penetrate into the body before stopping moxibustion. In addition, when moxibustion should pay attention to the moxa from the body to maintain a certain position, do not be too close to avoid burns, moxibustion immediately after not washing hands with cold water or bath, do not moxibustion within one hour after meals, the body appears cold, fever can not moxibustion.