Tin moxibustion is also known as drug moxibustion and foaming moxibustion. It is a treatment method that uses drugs with skin irritation applied to acupuncture points or affected areas to make the local skin naturally congested, flushed or blistered. The mechanism of action of moxibustion therapy: 1, the strong local stimulation of drugs to achieve the effect of activating blood circulation, eliminating blood stasis, swelling and dispersion of knots. The burning sensation produced by the drug can warm the meridians and disperse cold, dispel wind and dampness, and relieve paralysis and pain. 2.The drug foams to dispel decay and create new. 3.The drug treats the disease through the action of meridian points. 4, the drug itself has a therapeutic effect, with the role of leading the meridian, so that the drug directly to the disease. The first day of the year is the third day after the summer solstice. The third G day after the summer solstice is the first volt, the fourth G day is the middle volt, the first G day after the autumn is the last volt. Geng day refers to the day with the head of the word G in the “Tian Gan Di Zhi Ji Ji Fa”. “Volt, the day of gold ambush”, the five elements in the doctrine of G is gold, lung is also gold, so G and lung match. The day of the three volts, the lungs and blood flow smoothly, drugs are easy to reach the internal organs, is the best time to adjust the treatment of lung diseases. In addition, the three volt days is the hottest time of summer, according to the “Inner Classic”: the unity of heaven and man, the human body and nature’s Yang Qi are born in spring, prosperous in summer, collected in autumn, and hidden in winter. Summer is the most vigorous Yang, and the three volt days are the Yang of Yang, at this time to enhance Yang with pungent and warm drugs, autumn and winter prone to “cold” disease can play a half success effect, called “winter disease summer treatment”. And three volt days, the human body skin relaxation, pores open wide, the drug is easier to penetrate the skin, stimulate acupuncture points, to unblock the meridians, regulate the internal organs, cure disease and strengthen the body.