Tractatus de simplicium medicamentorum facultatibus. = A treatise of the nature and qualities of such simples as are most frequently used in medicines,: both purging, and others. Methodically handled, for the benefit of those that understand not the Latine tongue. To which is added: many compound medicines for most diseases incident to mankinde: as also two alphabeticall tables, very necessary for the reader. Together with, the explanation of all hard words or termes of art, whereby the vulgar may the better understand it.
Pemell, Robert.

The outward use.

It is of a sharp corroding quality, stoppeth freting & spreading soars, taketh away superfluous flesh in any Ulcer or Fistula, and eateth out the callous or hard flesh thereof, and is good in Ulcers & sores of the Eyes: mixed with Hony and used, it consumes the fleshinesse in the nose called Polypus, and helps the Disease in the fundament called a Fig. It cures Cankers and sores in the mouth being used with Hony and Plantaine water for a Gargarisme. It is thought Achilles first used this Medicine in the cure of Telephus: and therefore Achilles is commonly painted, scraping off the rust of his Spheare head, with his Sword, into the wound of the said Telephus. It is a drying astringent, and corrosive Medicine. It cures Kibes in cattell, being mixed with Soap or Hogs-greace. Pliny. Nat. Hist. lib. 25. cap. 5. fo. 216.