Wood use - Medicinal

A word of caution—medical care during the Middle Ages was primitive at best, dangerous at worst. For example, physicians based their treatments on the mythical 'Four Humors' and it was widely believed that “God” had provided remedies coded by appearance. With regard to herbal medicines, ‘natural’ is not necessarily preferable. After all, Atropa belladonna—Deadly Nightshade—is natural, as is Amanita muscaria.
The Bird Cherry (Prunus padus) was used medicinally during the Middle Ages.