Dry cupping is performed by throwing a piece of paper dipped into spirit of wine, and ignited, into a wineglass, and placing it over the part, such as the neck, temples, &c. It thus draws the flesh into the glass, and causes a determination of blood to the part, which is useful in headache, and many other complaints. This is an excellent method of extracting the poison from wounds made by adders, mad dogs, fish, &c.