The acetate of soda, though not often used, has remarkable power in lessening the granulations and crusting of strumous and lupoid ulceration: a lotion containing from 10 to 20 gr. in the ounce of water may be applied on compress, or injected into sinuses. In lupus the solid crystals may be lightly applied for a caustic effect (Anderson: Lancet, ii., 1869).