Poll-Evil and Fistula
Common potash, ¼ oz.; extract of belladonna, 12 drams; gum Arabic, ¼ oz. Dissolve the gum in as little water as possible; then, having pulverized the potash, unless it is moist, mix the gum water with it, and it will soon dissolve; add the belladonna; mix, and it is ready to use.
The best method for getting this into the pipes, is by means of a small syringe, after having cleansed the sore well with suds. Repeat once in two days, until the callous pipes, and hard, fibrous base around the poll-evil or fistula are completely destroyed.