San Fu moxibustion refers to moxibustion therapy on the day of three volts, which is generally chosen to be performed on the day of three volts. It is based on the theory of Chinese medicine, such as the correspondence between heaven and man, the treatment of winter diseases in summer, and the nourishment of yang in spring and summer, and is based on the theory of meridians and acupoints. The three volt days are determined according to the dry branch chronology. After the summer solstice, the third day with the word G in the branch chronology is the first volt, the fourth day with the word G is the middle volt, and the first day with the word G after autumn is the last volt, and the three together are called the three volts. The three volt days is the highest temperature of the year, the air is hot, generally in the summer of July-August, a total of about 40 days, each year the three volt days time is not fixed. The moxibustion therapy is performed during this period of time, which is also known as San Fu day, to remove the cold and damp evil from the body or from the body for a long time, thus improving the discomfort of the body due to the cold and damp evil. The frequency of moxibustion is not particularly fixed, because each person’s body is different, and the condition is mild or severe, and the duration of the disease is short or long. The patient does not have symptoms of fire such as dry mouth, thirst, dry throat, or more weakness after moxibustion, you can intermittently perform San Fu moxibustion. The patient should not turn on the air conditioner during San Fu moxibustion, and should avoid doing it in an environment with low indoor temperature to avoid opening the pores during moxibustion, which leads to the invasion of cold and dampness into the body, and should wait for half an hour after moxibustion for the pores to return to their normal state, and then turn on the air conditioner or go to a place with lower temperature. Before and after the San Fu moxibustion is carried out, you can drink water properly to replenish water in time. It is easy to sweat in the hot weather, and without timely replenishment of water it is easy to injure the gas and affect the effect of moxibustion.