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.

Fig. 346. Favus Parasite.

The Treatment of Favus

This malady is very obstinate, being more difficult of cure than ringworm of the scalp. It requires the same remedies.