Moxibustion for too long can cause insomnia, heat symptoms and skin allergies and other adverse reactions, it is recommended that the correct moxibustion under the guidance of a doctor. Moxibustion is a means of using moxa heat to stimulate specific points on the body surface to activate blood circulation, warmth and dissipate cold. However, the amount of moxibustion should be adjusted according to the individual’s physical condition, the size of the moxa column, the distance of moxibustion, and the course of treatment. If the moxibustion time is too long, or moxibustion at night, it is easy to yang does not enter the yin and insomnia; also easy to make the yang qi bias hyperactivity, causing thirst, irritability, mouth and tongue sores and other symptoms of heat. In addition, too much moxibustion is easy to stimulate the skin, causing skin redness, swelling, itching and other allergic phenomena, and even cause burns. If you are not feeling well, it is recommended that you always seek medical attention and moxibustion correctly. Moxibustion is not recommended for hot bodies to avoid aggravating the symptoms of heat.