"Folk-medicine" is really a branch of magic in old days, even to such pioneers of science as Paracelsus.
This was possibly the verbena, well known in folk-medicine as vervain, and much used in the Middle Ages.
Many of these were borrowed by the Greeks and from them have come down into the folk-medicine of modern Europe.
"Dragon's milk," a favourite compound of mighty power in the magic formul of Finnish and Magyar folk-medicine.
An enumeration of uncouth remedies formerly in vogue would fill huge pharmacopœias, and belongs to the domain of Folk-Medicine.