Moxibustion is a form of heat therapy in which dried plant materials called "moxa" are burned on or very near the surface of the skin. The intention is to warm and invigorate the flow of Qi in the body and dispel certain pathogenic influences. Moxa fire is warm without being dry, and it can ascend and descend with strong penetration ability into the viscera. Moxibustion with moxa leaf can get into the channels and cure hundreds of diseases. Its function is great.

Moxa is usually made from the dried leafy material of Chinese mugwort, but it can be made of other substances as well.