778. Escharotics
These are remedies used to destroy the vitality of a part. They comprise lunar caustic, bluestone, and solution of chloride of zinc.
779. Bluestone, or Sulphate of Copper
Bluestone, or Sulphate of Copper, is used in a solution of from four to fifteen grains to the ounce of water, and applied to foul and indolent ulcers, by means of rag dipped in it. It is rubbed in substance on fungous growths, warts, &c., to destroy them.
Caution
.—It is a poison.
780. Lunar Caustic; or Nitrate of Silver