Rabies. Much more at the link, including the origin of the phrase "the hair of the dog."
Pliny the Elder... suggested that you burn a hair from the dog that bit you and insert the ashes into the wound... But he also rattled off this mindblowing series of other possible remedies. A maggot from a dead dog's body, or a linen cloth soaked with menstrual blood of a female dog. Chicken excrement, "if it is of a red color." Ashes from the tail of a shrew-mouse!Something strong is needed. What do we have around here that's strong? (Reminds me of the way some people today think about politics!)
Here's the book: "Rabid: A Cultural History of the World's Most Diabolical Virus." I just bought it myself.