A practical treatise on porrigo, or scalled head, and on impetigo, the humid or running tetter : with coloured engravings illustrative of the diseases / by Robert Willan ; edited by Ashby Smith.
- Date:
- 1814
Licence: Public Domain Mark
Credit: A practical treatise on porrigo, or scalled head, and on impetigo, the humid or running tetter : with coloured engravings illustrative of the diseases / by Robert Willan ; edited by Ashby Smith. Source: Wellcome Collection.
Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.
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![The blotches thus continue enlarging from time to time, until they arrive at the dimensions represented, PliVTE II. During their extension, the hairs within the circles appear of a lighter colour, and they sometimes break off about an inch from the seal}). Several of the bulbs are destroyed by the repeated eru})tion, ulceration, and scabbing. If the com- plaint be neglected in this stage, the circular blotches be- come confluent, and all the hair within them, is finally ex- tirpated. As soon as this is completed, the scalp, though partially much denuded^ re-assumes its natural colour and appearance. A border of hair round the head is usually left uninjured. While the circular areas remain smooth, in- flamed, and shining, as in the Plate, an early termination of the disease is not to be expected. The redness, in many cases, interchanges with dandriff or scurf, but without afford- ing a more favourable prognostic. The Porrigo scutulata affects children two years’ old or upwards. It continues, in many cases, for a series of years, and is more unmanageable than any other species of Porrigo.—Those, with whom it originates, are often pale, languid, emaciated, and subject to induration of the glands. By contagion, however, the disease may be communicated to others who are in perfect health. So ra|)id is the communi- cation in many instances, that I have seen fifty children at a school, affected in less than a month, where there was but one ])rimary source of contagion. Some liair-dressers con- tinue thoughtlessly to use the combs, scissars, &c. they had employed on the infected children, and thus by a kind of inoculation,](https://iiif.wellcomecollection.org/image/b21963782_0030.jp2/full/800%2C/0/default.jpg)
