This section is from the book "The Home Hand-Book of Domestic Hygiene and Rational Medicine. Volume 2.", by J. H. Kellogg, M.D.. Also available from Amazon: The Home Hand-Book of Domestic Hygiene and Rational Medicine, Volume 2.
When the disease occurs upon the general surface of the body, or upon a part not covered with long hair, it may bo readily cured by the application of a solution of carbolic acid made as follows: Carbolic acid, one drachm; glycerine, one-half ounce; water, two ounces. Apply to the affected parts with a brush, daily, until the disease disappears. A solution of sulphurous acid is also an excellent remedy, made as follows: Bum two or three ounces of sulphur in a tight box, by placing it on the under-side of a hot stove cover, supported by a brick. Place in the box before closing it a shallow earthen vessel filled with water. The water will absorb the smoke arising from the combustion of the sulphur, and will thus become charged with sulphurous acid. Apply as directed for carbolic acid Ink is a domestic remedy usually successful. Another remedy sometimes used with success, is wearing over the part a penny wet with vinegar.
When the scalp and beard are affected, the hair must be pulled out by means of pincers before the remedy is applied. This is necessitated by the fact that the disease penetrates to the bottom of the hair follicles. The hair thus pulled out always grows again, as the roots are left. Several months' treatment is often necessary to effect a cure in these cases, the same hairs having to be pulled again and again before they remain healthy. The remedy must be applied, and well rubbed in each time, after a portion of the affected hairs have been pulled, and once or twice a day in addition.