The Vinegar of the Four Thieves is antipestilential, and is used successfully as a preservative against contagious disorders. The hands and face are washed with it every day; the room fumigated with it, as are also the clothes, in order to secure the person from infection.
[EYES.]
Prepare a decoction with the Leaves of Betony, Fennel Roots, and a little fine Frankincense, which use as an Eye-water.
Frequently bathe the Eyes with a decoction of Chervil.
Drop into the Eyes now and then a little Juice of Rue, mixed with clarified Honey.