There are several methods of moxibustion. Three of them are direct scarring, direct non-scarring, and indirect moxibustion. Direct scarring moxibustion places a small cone of moxa on the skin at an acupuncture point and burns it until the skin blisters, which then scars after it heals.[9] Direct non-scarring moxibustion removes the burning moxa before the skin burns enough to scar, unless the burning moxa is left on the skin too long.[9] Indirect moxibustion holds a cigar made of moxa near the acupuncture point to heat the skin, or holds it on an acupuncture needle inserted in the skin to heat the needle.[9] There is also stick-on moxa.