The side effects and dangers of moxibustion are not yet clear, but note that it is contraindicated for pregnant women, patients with yin deficiency and fire (deficiency of yin and essence in the body, which appears as hyperactive deficiency fire), and patients with solid heat syndrome. It is forbidden for those who are allergic to the smell of moxa smoke and moxa leaves. Take care to prevent burns when using moxibustion. Moxibustion is suitable for people with external wind-cold symptoms; wind-cold-dampness paralysis (paralysis of limbs caused by wind, cold and dampness), dysmenorrhea, amenorrhea; uterine prolapse; and prolonged ejaculation and dysentery. Moxibustion has the function of warming the meridians and dispersing cold (warming the meridians of the human body to get rid of the coldness in the body), elevating yang and lifting the sunken organs (elevating the yang energy of the body to lift the sunken organs), activating blood circulation and removing blood stasis (promoting the operation of the blood and eliminating the blood stasis in the body), dispersing the knots and eliminating carbuncles (evacuating the knots and eliminating the carbuncles and poisons), driving away evils and draining the heat, and preventing the diseases. Moxibustion has the effect of activating blood circulation and removing blood stasis, therefore, it is not recommended for pregnant women; burning of moxa leaves has the effect of warming yang, therefore, moxibustion is prohibited for those with heat in yin deficiency and solid heat evidence, so as not to cause the symptoms of fire; the smell of smoke from the burning of moxa leaves has the taste of irritation, therefore, it is prohibited for those who are easily allergic to it. It is recommended to do moxibustion under the guidance of a professional doctor, do not blindly moxibustion.