Ointment for a Boil that fails to Break (Spell)

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

Ointment for a Boil that fails to Break.

Take some covidalis for five cents, a little honey, saffron, the yolk of an egg, and a little flour; put all of these articles into an earthen pot, mix well. This will give a most excellent plaster.

The grimoire Egyptian Secrets of Albertus Magnus lists this spell.

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