I’ve just seen a picture of a Victorian cough mixture bottle.
It contained alcohol, chloroform, cannabis oil and a couple of other interesting ingredients 
It’s got me intrigued: what other genuine medical treatments/procedures/advice from days passed have you heard about that have made you think “Surely not?!”
Like the old adverts for Camel cigarettes: “The cigarettes your doctor recommends” or something along those lines wasn’t it?