What happened when someone in the Middle Ages got pink eye, or someone in Elizabethan England got athlete's foot or crotch rot? Did the infections just hang around forever? Was everyone just infected with this type of stuff? (It's pretty well-known that basically everyone had lice and fleas, I believe.)
In Ask Me: Minor infections in the days before anti-biotics or anti-fungals? Many good answers, and Jane the Brown brings the serious history again.