CANTHARIDES OR SPANISH FLY
This is in the form of powder, and is an irritant. For use it should be thoroughly mixed with lard or vaseline. One teaspoonful of the cantharides to 4 tablespoonfuls of lard or vaseline. When so prepared it is excellent as a blister. It can be applied for sweat thickenings or lumps on any part of the body that is not on the bone. It should not be used on curbs or tumors and is not used internally.