This section of the book is from "The Complete Herbalist" by Dr. O. Phelps Brown. Also available from Amazon: The Complete Herbalist: The People Their Own Physicians By The Use Of Nature's Remedies.
This is commonly known as "Barber's Itch," and is confined to the face, especially to that portion covered by the beard. It is characterized by inflammation of the hair follicles, causing an eruption of small pustules forming incrustations eventually. It may be consoling to those who suffer with it to know that it is caused by a parasite with the humble name of microsporon mentagraphytes.
TREATMENT. -- Shave the beard, and paint the part with a strong tincture of iodine for a few days. Follow this with a poultice, composed of equal parts of lobelia, blood-root, myrrh, and slippery-elm. Depilation, or pulling out the beard, may be necessary in some cases to effect the cure.