Umbilical moxibustion is, as the name implies, interdermal fumigation therapy, which is spoken of in ancient books as fumigation of the umbilicus. It is divided into ginger moxibustion, salt moxibustion, sapodilla moxibustion and drug moxibustion, which is different from ginger moxibustion, salt moxibustion and sapodilla moxibustion. The moxibustion uses dry powder, which is a strong penetrating drug placed on the Shen Que point, and then the powder is pressed into a depression with a mold, and a conical moxa pillar is placed on top of the depression, after the pillar is lit, the warmth of the moxa pillar will penetrate the medicine through the navel Shen Que point to the more sensitive areas of the skin to achieve the therapeutic effect. Navel moxibustion is more effective for cold deficiency.