This is sort of a question for those who know a bit about history and/or medieval philosophy (or folk philosophy, for lack of a better term). I've have read about lots of strange "cures" over the years, sometimes even endorsed by doctors and educated individuals, and some of them I can't for the life of me figure out. For example, I remember reading not too long ago that Francis Bacon believed that you could cure warts by putting animal fat on the wart, and then letting the fat rot in the sunlight. This is by no means a rare type of thing, and I've heard much stranger ones. Now, the animal fat thing I can half understand... maybe they thought there was some type of chemical(s) that would be effective in removing the wart. But why in the world would it matter what you did after removing the fat from the wart? I mean, why would someone believe that putting the fat in the sun was an important part of being cured, but that if you threw the fat away you wouldn't be cured?