The lymphatic glands are to be prevented from inflaming, by avoiding exposure to cold, and to the other common causes of inflammation, but especially by preventing the absorption of irritating matter, such as matter from sores, and the like. A neglect of this is perhaps one of the most frequent causes of scrophulous inflammation; for swellings of the glands of the neck can very often be distinctly traced to scald head, to ulcerations about the ears, little sores in the mouth, caries of the teeth, or to the absorption of particles of food allowed to remain and undergo fermentation in the mouth. The greatest attention ought therefore to be paid to cleanliness. The head ought, in scrophulous children, to be washed daily, and the sweat removed from behind the ears; vermin ought to be diligently removed; but mercurial, and acrid preparations, frequently used with that intention, ought to be avoided. The mesenteric glands are to be prevented from inflaming, by supporting the action of the bowels, and preventing the formation of irritating matter, which, when absorbed, may swell these glands. Nourishing digestible diet, conjoined with rhubarb, and such remedies as act as tonics, at the same time that they keep the belly easy, are of use in this view; for the whole process of digestion is thus supported, and neither the feculent part of the food, nor the mucus of the intestines, become morbidly irritating. The other parts of the body are to be prevented from inflaming, by avoiding the usual causes of inflammation, and the action of whatever may injure the healthy condition of the part, or impede the natural action. Thus, the knee and ankle joint occasionally become affected with scrophulous inflammation after fatigue, which injures the healthy condition of the parts. Besides these precautions, which are necessary in those of an evidently scrophulous constitution, with regard to particular parts, it is likewise useful to preserve as vigorous and perfect a performance of the natural actions of the system, considered in the aggregate, as possible, by which we lessen the risk of any one part becoming diseased; for, whatever impedes or diminishes the performance of the natural and healthy action of a part (and, in this case, the whole body is to be considered as made up of parts), renders that part more susceptible of disease, or derangement of its actions. Cleanliness, pure air, warm and sufficient clothing, nourishing and digestible diet, invigorating exercise, and a due proportion of sleep, are therefore very powerful preventatives of this species of inflammation, insomuch, that Dionis remarks, that seventy-five out of the hundred, who came to be touched by the king, were children of the poor peasants.