Favus is caused by nutritive debility, which results in a perverted cell-growth.
"The People's Common Sense Medical Adviser in Plain English" by R. V. Pierce
Favus: a cell like that of a honeycomb.
"Explanation of Terms Used in Entomology" by John. B. Smith
Upon the general surface it usually responds readily to treatment, excepting favus of the nails, which is always obstinate.
"Essentials of Diseases of the Skin" by Henry Weightman Stelwagon
There is favus or scall-head, called also "porrigo," which has its primary seat in the hair follicles.
"Fungi: Their Nature and Uses" by Mordecai Cubitt Cooke
FAVUS is a disease due to a fungus, and affects the hair, hair-follicles, and skin, usually of the scalp.
"The New Gresham Encyclopedia" by Various
Scratching aggravated the condition, so that some places assumed a cup-like appearance, somewhat as favus.
"New, Old, and Forgotten Remedies: Papers by Many Writers" by Various
Favus, contagiousness of, 198.
"Essays In Pastoral Medicine" by Austin ÓMalley
The resulting parasitic inflammations are known as favus, sycosis, ringworm, thrush, etc.
"A System of Practical Medicine by American Authors, Vol. I" by Various