St. Jacobs Oil: So That's the Rub.

St. Jacobs Oil started out as a patent medicine pain remedy in the last third of the 19th century. About 40 years prior to implementation of the Pure Food and Drug Act of 1906, this "cure" was promoted as The Great Remedy for Pain of "Rheumatism, Neuralgia, Backache, Headache, Toothache, Sprains, Bruises, etc." This paper follows the history of St. Jacobs Oil starting with its development by August Vogeler family in Baltimore, Maryland.