Treatment.--Keep the child in bed until the fever is gone. Keep him in the house for one week after the swelling has entirely subsided. He should be put on a liquid diet while the fever lasts. The bowels should move each day.
The mouth should be kept clean by an antiseptic mouth wash. If there is much pain in the swollen gland, warm, wet dressings give the best results. Sometimes it is advisable to paint the gland with belladonna ointment. If it is not very painful, the most comfortable way to dress the gland is simply to place over it a large pad of absorbent cotton held in place by a broad strip of flannel cloth.
Chicken pox is an affection almost entirely special to children, in whom it may be observed from their first year, although it is especially frequent from the ages of two to six. It appears often in the epidemical form and spreads by contagion.
Some doctors are inclined to regard varicella as a very attenuated form of smallpox, hence the name "chicken pox," by which it is popularly known. This opinion is based merely on the analogy between the two types of skin eruptions and the coincidence sometimes observed between two epidemics of smallpox and chicken pox. But the theory falls on considering that, on the one hand, chicken pox offers no safeguard against infection by smallpox and does not prevent the effects of vaccination, and, on the other hand the disease may occur in children who have been vaccinated or who have had smallpox. Chicken pox, too, differs essentially from smallpox in the course of its development.
After a period of incubation, extending over a fortnight, chicken pox becomes apparent by such symptoms as slight shivering, extreme fatigue and a general but not very intense condition of fever. In less than twenty-four hours small pink spots will appear on the skin, and these after a few hours are topped by a vesicle, and the next day the whole rash shows a vesiculous appearance.
The vesicles are sometimes small and pointed, sometimes more voluminous and globular in form. They are filled with a limpid or a slightly yellowish liquid. Their base is sometimes surrounded by an inflammatory ring. By the third day the contents of the vesicle has become thicker and tends to become purulent. On the fourth day desiccation commences, and the vesicles shrivel and shrink in and form small brownish scabs, which fall about the eighth day. Frequently the child will scratch them off with the finger nails before they are entirely desiccated. The vesicles leave small reddish spots, which generally disappear gradually, almost always without a scar.