Fruits like the French plum, the raisin, the orange and the grape, are particularly useful in constipation. This does not, of course, mean that these fruits may be eaten even where there is no hunger. They ought not to be eaten at all in cases of gripes accompanied by a bad taste in the mouth. Chapter VI CONTAGIOUS DISEASES: SMALL-POX Now we will proceed to deal with the treatment of contagious diseases. They have a common origin, but, since small-pox is by far the most important of them, we will give a separate chapter to it, dealing with the rest in another chapter. [Pg 105] We are all terribly afraid of the small-pox, and have very crude notions about it. We in India even worship it as a deity. In fact it is caused, just like other diseases, by the blood getting impure owing to some disorder of the bowels; and the poison that accumulates in the system is expelled in the form of small-pox. If this view is correct, then there is absolutely no need to be afraid of small-pox. If it were really a contagious disease, everyone should catch it by merely touching the patient; but this is not always the case. Hence there is really no harm in touching the patient, provided we take some essential precautions in doing so. We cannot, of course, assert that small-pox is never transmitted by touch, for those that are physically in a condition favourable to its transmission will catch it. This is why, in a locality where small-pox has appeared, many people are found attacked by it at the same time. This has given rise to the superstition that it is a contagious disease, and hence to the attempt to mislead the people into the belief that vaccination is an effective means of preventing it. The process of vaccination consists in injecting into the skin the liquid that is obtained by applying the discharge from the body of a small-pox patient to the udder of a cow. The original theory was that a single vaccination would suffice to keep a man [Pg 106] immune from this disease for life; but, when it was found that even vaccinated persons were attacked by the disease, a new theory came into being that the vaccination should be renewed after a certain period, and to-day it has become the rule for all persons—whether already vaccinated or not—to get themselves vaccinated whenever small-pox rages as an epidemic in any locality, so that it is no uncommon thing to come across people who have been vaccinated five or six times, or even more.