767. Cantharides, or Spanish flies
Cantharides, or Spanish flies, when used internally, are diuretic and stimulant; and epispastic and rubefacient when applied externally.
Mode of application.
—A portion of the blistering plaster is spread with the thumb upon brown paper, linen, or leather, to the size required; its surface then
slightly
moistened with olive oil and sprinkled with camphor, and the plaster applied by a
light
bandage: or it is spread on adhesive plaster, and attached to the skin by the adhesive margin of the plaster.
Caution.