@flipper and #318836
Your posts reminded me of one of my middle school history textbook, more precisely a (very sarcastic) letter from a Crusades-era Arabian physician describing the "wonders" of Xian/European medical science to one of his peers. He described several cases of Xian patients getting scared/bullied into not letting a heathen treat them, and the results of the treatments Xian "medicine" prescribed.
The two cases I remember were:
- a knight with an infected leg wound. The physician was treating it with poultices, that in his experience should have drained the pus and allowed the leg to heal, when a Xian medecine man came, dismissed the "heathen remedies" as useless and imperilling the knight's soul, and told him that he needed to have the leg chopped off or he'd die. In the end, the unnecessary amputation was (incompetently) performed, and it ended up killing the knight.
- a noblewoman complaining from headaches, hot flashes and other discomforts. The physician's diagnosis was that her diet was the cause of her problems, and that she should particularly lay off the mustard and spices (IIRC). She followed his advice, got better, then a Xian charlatan convinced her that all she needed to do was pray the problems away. She went back to her bad diet, and not very surprisingly relapsed. The charlatan then diagnosed her as possessed, and to exorcise the demon he had her head shaved before cutting a cross on her skull and putting salt on the wound. The wound got infected and she died.