Give Belladonna at the 3d attenuation, three to six pellets, according to the age of the child, every morning, during the prevalence of the epidemic. This is for the common or mild form of the disease. If the prevailing epidemic is of the malignant kind, producing fatal ulcerations of the throat, give Bell. once in two days and Mercurius Corrosivus at the 3d attenuation on the alternate day.
While Bell. is a very certain preventive of the common eruptive Scarlatina, it is not as certain to prevent the malignant form. Though it renders the latter much more mild, the Merc. Cor. is necessary to ward it off entirely, or so modify as to divest it of the dangerous features.
TO PREVENT YELLOW FEVER
Take Aconite, Belladonna and Macrotin, 1st in rotation one dose a day. If there is any headache, or pains occur in other parts of the body, or a languid feeling, take a dose twice or three times a day in rotation.
TO PREVENT BILIOUS FEVER OR AGUE
Take Podophyllin, Baptisia and Gelseminum 1st in rotation, one dose at night, and if symptoms of fever, as headache and loss of appetite, or bad taste in the mouth in the morning appear, take a dose three times a day, and refrain entirely from food for one or two days.
TO PREVENT TYPHOID FEVER
When exposed, as in nursing the sick, take Baptisia 2d, and Macrotin 2d, a dose three times a day.
TO PREVENT SMALL-POX
Use Macrotin 1st night and morning, and if nursing or exposed frequently, use it every four hours.