This section is from the book "A Practitioner's Handbook Of Materia Medica And Therapeutics", by Thos. S. Blair. Also available from Amazon: A Practitioner's handbook of Materia Medica and Therapeutics.
"Mullein Oil" (genuine) is not strictly an oil, but is a juice extracted fro~ mullein blossoms by compression, after several days exposure to the sun in a glass jar. It has positive value, used full strength, in the ear in uncomplicated deafness, simple catarrhal earache, and ulcerated ears. Many preparations are unreliable.