Dancing Hoskuld
Deity
Not completely true. There were valid and effective cures for many diseases but they did not always work because there was not a germ theory of disease to unite what was known. The washing of wounds and hands with soap and alcohol changed everything.Historically, there were no really effective remedies for diseases before the invention of penicillin anyway. Other than amputating rotting body parts or the occasional quarantine measure. There were lots of stupid remedies though, like bloodletting or sacrificing animals to certain gods.
As I have said before of the 200 medical remedies from a medical scroll from the time of Hatshepsut, 5 have not been translated, but the rest were in use in modern medicine in the West in 1950. The spells, prayers and chants were replaced by minutes and seconds; better ways of getting alcohol reduced the time and improved the effectiveness for some, and plants from the new world replaced a few of the old world ones.
Quarantine is such a big step forward in medicine that I agree with Brackensopre that it should be a new tech in the tech tree. Perhaps we should split Medicine into "Quarantine" and "Germ Theory of Disease". From what I have read enforcing a quarantine for humans or animals has always been a problem.