an infectious skin disease of humans and many animals, esp. fowl, caused by an imperfect fungus (esp. Trichophyton schoenleinii) and characterized by itching and the formation of yellow crusts usually about the hair follicles, esp. on the head
In the disease of the scalp called favus, Schonlein had discovered a minute mycelial fungus; a remarkable discovery, for it was the first conspicuous step in the attribution of diseases to the action of minute parasites.
It can also be used with advantage in inoperable uterine cancer, favus and lupus, and as an injection in gonorrhoea and suppurative conditions of the ear.