A cook in the Kings court was sentenced to death, and chose to be poisoned. Paré administered the bezoar stone to the cook, but it had no effect, and the cook died in agony seven hours after taking the poison, proving that contrary to popular belief, the bezoar could not cure all poisons.Modern examinations of the properties of bezoars by Gustaf Arrhenius and Andrew A. Benson of the Scripps Institution of Oceanography show that when bezoars are immersed in an arsenic-laced solution, they can remove the poison. The toxic compounds in arsenic are arsenate and arsenite; each is acted upon differently by the bezoars: arsenate is removed by being exchanged for phosphate in brushite found in the stones, while arsenite is bound to sulfur compounds in the protein of degraded hair, which is a key component in bezoars.A famous case in the common law of England (Chandelor v Lopus, 79 Eng Rep. 3, Cro. Jac. 4, Eng. Ct. Exch. 1603) announced the rule of caveat emptor ("let the buyer beware") if the goods they purchased are not in fact genuine and effective. The case concerned a purchaser who sued for the return of the purchase price of an allegedly fraudulent bezoar.
Treatment
Up until the advent of modern therapies, favus was widespread worldwide; prior to Schönleins recognition of it as a fungal disease, it was frequently confused with Hansens disease, better known as leprosy, and affected Europeans were sometimes committed to leprosaria. Today, due to this species high susceptibility to the antifungal drug griseofulvin, it has been eliminated from most parts of the world except rural central Asia and scattered rural areas of Africa. It is mainly a disease connected to demographic poverty and isolation, but is so readily treatable that it is among the diseases most likely to be eliminated by modern medicine. References

This article incorporates text from a publication now in the public domain: Chisholm, Hugh, ed. (1911). "Favus". Encyclopædia Britannica. Vol. 10 (11th ed.). Cambridge University Press. p. 215. Kane, J., R.C. Summerbell, L. Sigler, S. Krajden, G. Land. 1997. Laboratory Handbook of Dermatophytes: A clinical guide and laboratory manual of dermatophytes and other filamentous fungi from skin, hair and nails. Star Publishers, Belmont, CA. Gräser Y, Kuijpers AF, Presber W, De Hoog GS (October 1999). "Molecular taxonomy of Trichophyton mentagrophytes and T. tonsurans". Med. Mycol. 37 (5 Cpages=315–30): 315–30. doi:10.1046/j.1365-280x.1999.00234.x. PMID 10520156. == External links ==