The first stage is moxibustion along meridians: heat penetration, thermal expansion and heat transfer? Three kinds of heat sensation phenomena indicate that the qi of meridians in the body has been activated and promoted? It's circulating. For example, when moxibustion at Zusanli, the hot air will go down? Touch the calf.
The second stage is the debate between good and evil: Moxibustion is often manifested as acid, numbness, swelling, pain and itching, indicating that the menstrual qi in the body is stimulated? Automatically fight the pathogenic factors of the disease. The most common is that patients with high atmosphere itch, and patients with high humidity locally emit moisture.
The third stage is pathogenic factors going out: most of them are wind, cold, cold and cold moxibustion, which shows that the menstrual qi in the body is sufficient and the sick qi begins to be excreted. Even some patients? Obviously feel a breath? Run out of your toes.