Symptomatic Group

The Symptomatic Group contains roseolas which are merely rosy erythemata developed in the course of acute diseases, generally appearing about the arms, breast, and face, thence spreading over the body. R. vaccinia co-exists with the formation of the vaccine vesicle, and is accompanied by slight fever. It commences around and about the seat of the vaccination. In cases of fevers, about the tenth day or so, and indeed whenever the weather is very warm, the perspiration is apt to distend the sweat glands, which become more or less hyperaemic, so that little vesicles form, for example, miliaria and sudamina. Some­times red blushes accompany this particular kind of vesicular eruption, and to these rosy blushes the name R. miliaris has been given.

After surgical operations a rash like scarlet fever very frequently occurs; its color varies somewhat; it is not contagious, and is without the general symptoms, the throat complication, hot skin, quick pulse, and tongue of scarlet fever. It is due, doubtless, to some volatile poison free in the blood. It has no gravity.