The hygiene of the skin, or, The art of preventing skin diseases / by A. Ravogli.

Date:
1888
Catalogue details

Licence: Public Domain Mark

Credit: The hygiene of the skin, or, The art of preventing skin diseases / by A. Ravogli. 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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    also the fingers, and having some likeness to chilblains. When the patches remain a long time, the redness in the middle disappears, and the edges ouly show the swelling and the red color, producing what we call Erythema annu- lare. In the same way two spots, one near the other, joining themselves through the edges, can produce that figure which we know as Erythema gyratum. The only question is as to the shape of the eruption and the degree of the erythema, but none as to its entity. Several efficient causes are assigned of erythema, and ac- cording to the last studies of Jarish,* it would seem to be a disorder in the gray axis of the spine. But erythema has been also remarked after ingestion of irritative sub- stances, as several kinds of Crustacea, molluscs, and of some remedies, as balsam of copaiba. Bazin considers the arthritic diathesis the cause of erythema. In 1877 we illustrated some cases of Erythema exudativum multiforme treated in the hospital of San Galli- cano in Rome, Italy, where the most apparent cause of the erythema was the rheumatic condition of the individuals. The eruption was preceded by rheumatic pains in the joints, and a slight feverish attack; and after a while the eruption took place. We will not maintain that the cause of erythema is ex- clusively the rheumatic diathesis; but among the several causes we will comprehend this dyscrasia. If the ingestion of several kinds of food, or the ingestion of different medi- cines is capable of producing erythema, we do not see any impossibility that the several organic acids retained in the blood may produce such an irritation on the nervous center as to produce the erythematous eruption. Erythema is very often .seen in Spring and in Fall, lasts from two to four weeks, disappears without desquamation, but sometimes on * Tiber die Coincident von Erkrankungen der Haut und der grauen axe des Rnkenmarks. SizUinKsberichte der K. Academic der WMksnschaften III, Abth. 80 lxl. ihho