Sentence:  The use of vapour baths ('stone baths') and the smoke of certain herbs to drive out spirits of disease in animals and humans is well-attested in Germanic folklore and <WSD>leechcraft</WSD>, though, and might be compared with the use of steam and steam-baths typical of classical medicine, the Christian ritual of burning away the ashes of embers of sin [...] 
Meaning of the word marked with <WSD> tags:  The art or practice of healing or medicine.