Celsus, De Medicina
W. G. Spencer, Ed.

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4 Bald spots also are of two kinds. In both,[p. 183] owing to the dying of the surface pellicle, hairs are at first rendered thin, and then they fall out; and when the place is cut into, the blood which flows is thin and malodorous. Both kinds spread, in some quickly, in others slowly; the worse kind is that in which the skin has become thick, somewhat fatty, and quite smooth. But that which is named alopecia spreads without defined configuration. It occurs in the hairy scalp or in the beard. That again which is called from its shape ophis, commences at the back of the head, and without exceeding two fingers in breadth, creeps forward to the ears with two heads, in some even to the forehead, until the two heads join one another in front. The former affection occurs at any age, the latter generally in young children. The former scarcely ever terminates, such under treatment, the latter often by itself. Some scarify these bald patches with a scalpel; some smear on caustics mixed with oil, and especially burnt papyrus; some apply turpentine-resin with fennel. But there is nothing better than to shave the part daily with a razor, because as the surface skin is gradually removed, the hair roots become exposed; and the treatment should continue until a number of hairs are seen to be growing up. Following upon the shaving it is sufficient to smear on Indian ink.