Chlorate of Potash . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 ounce.
 Tannin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 ounce.

Powder separately and then mix. Sprinkle on the affected part three times a day.