When a Sore fails to Break open (Spell)

From Egyptian Secrets of Albertus Magnus, Joseph H. Peterson edition:

When a Sore fails to Break open.

Take virgin-parchments as large as the sore, put it first in water and then on the sore spot. Propatum!

Timeline of related events

1900

1950

In this decade: Publication of The Book of Forbidden Magic (lists this spell)