Moxa
From BiblePortal Wikipedia
Moxa [1]
(1): ( n.) A plant from which this substance is obtained, esp. Artemisia Chinensis, and A. moxa.
(2): ( n.) A soft woolly mass prepared from the young leaves of Artemisia Chinensis, and used as a cautery by burning it on the skin; hence, any substance used in a like manner, as cotton impregnated with niter, amadou.