Styrax.
Furunculus.—See Boils.
Gall Stones.—See Calculi, Biliary.
Gangrene.—See also, Wounds, Gangrenous.
Acid, Carbolic: locally in strong solution to act as caustic; as a dressing to promote healthy action.
Acid, Chromic: local escharotic.
Acid, Citric.
Acid, Nitric: next to bromine the most useful escharotic.
Acid, Pyroligneous.
Acid, Salicylic: locally.