It is antiseptic, and a good application to bruises. A Cataplasm of Beer Grounds, Cataplasma Fae'culae Cerevis'iae, C. Bynes, is used in the same cases.
A yeast poultice; made by mixing 6 fl. oz. of beer yeast with 6 fl. oz. of water heated to 100 F., stirring in 14 ounces of flour, and placing the mass near the fire to ferment; applied to unhealthy and gangrenous ulcers.
