And thereupon she burned with her Moxa (of which hereafter) on my feet and knees, (to my best remembrance) about twenty little Escars, which looked like lit∣tle gray specks, without raising any blisters, or causing any after-pain; whereupon also all the pain of the Gout vanish’d.
Source: wiktionary
Moxa is celebrated in the eastern countries, for preventing and curing many disorders, by being burnt on the skin: a little cone of moxa, laid on the part previously moistened, and set on fire at top, burns down with a temperate glowing heat, and produces a dark coloured spot, the exulceration of which is promoted by applying a little garlic, and the ulcer either healed up when the eschar separates, or kept running for a length of time, as different circumstances may require.
Source: wiktionary