A poultice, also called cataplasm, is a soft moist mass, often heated and medicated, that is spread on cloth over the skin to treat an aching, inflamed, or painful part of the body. It can be used on wounds such as cuts.Poultice may also refer to a porous solid filled with solvent used to remove stains from porous stone such as marble or granite.The word "poultice" comes from the Latin puls, pultes, meaning "porridge".