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.
This is another vegetable parasitic disease of the skin. See Fig. 346. Any portion of the skin may suffer, but the scalp is most likely to be affected. The disease is characterized by the formation of yellow crusts, which are depressed at the center, at which a hair may generally be seen. The affection begins in the hair follicles, and extends to the whole skin of the affected part. The crusts are formed almost wholly by the growth of the fungus. They have an odor similar to that of mice, which are also very subject to this disease.
Fig. 346. Favus Parasite.
This malady is very obstinate, being more difficult of cure than ringworm of the scalp. It requires the same remedies.