This section is from the book "The Home Hand-Book of Domestic Hygiene and Rational Medicine. Volume 2.", by J. H. Kellogg, M.D.. Also available from Amazon: The Home Hand-Book of Domestic Hygiene and Rational Medicine, Volume 2.
At the beginning of the affection, drink freely of warm liquids to facilitate evacuation of the stomach. Large, warm enemata will also be found serviceable. When the vomited matter no longer shows traces of food, efforts should be made to stop the vomiting as soon as possible. Give the patient small bits of ice from the size of a bean to that of a filbert, allowing him to swallow the bits every few minutes. This is one of the most successful means of stopping vomiting. At the same time apply hot fomentations over the stomach and bowels. In cases in which hot applications to the bowels do not seem to give any relief, very cold compresses may be applied instead. If the patient suffers much from cramp, put him into a warm bath. Do not be alarmed if the vomiting and purging are not checked at once. The unpleasant symptoms will almost certainly disappear after a few hours. If the case is an unusually severe one, or the patient is far advanced in years, or a young child, a physician should be called at once, as it may become necessary to employ an opiate to check the vomiting. We have never lost a case in the treatment of this disease, and have very rarely found it necessary to employ other than the simple measures mentioned. It is very important that the patient should be careful in his diet for some time after the severity of the attack has passed away, as a relapse may be brought on very easily by indiscretion. The diet should consist chiefly of cooked fruits, avoiding seedy fruits, and grains. Animal foods and coarse vegetables should be wholly avoided until the stomach is fully restored to its natural condition.