Page:A Treatise upon the Small-Pox.pdf/45

Rh all being form’d by Congestion, that is, the gradual Addition or Afflux of new Matter, from what Sources soever it is deriv’d.

In a short Time after the Appearance of this milder Kind of the Small-Pox, of which we are discoursing, the previous Symptoms are in a great Measure mitigated, that is, the Pains in the outward Parts; Headach, Thirst, labouring Pulse, and disturb’d Imagination or Delirium: 'Tis observable, that in Children convulsive Motions, a harmless Symptom, often usher in the Eruption of this Distemper, which confirms what I have before asserted, that the Nerves and animal Spirits are first affected by this Disease; and when the Matter or Principles of it are cast off from the Nerves into the Blood, and are thence after a due Preparation and Digestion thrown out into the Surface of the Body, the Symptoms which before that Time afflicted the Patient in a very great Degree, are removed. Things now having taken another Turn, the Fever is greatly abated, and the Blood and Spirits restored almost to a State of Quiet and Tranquillity; and now Nature as fast as it has concocted and dispos’d the noxious Parts for Exclusion, drives them out to feed the Seeds of the little Swellings or Ulcers, till at length it has entirely freed the Blood, and produced a compleat Harvest, which it usually accomplishes in three Days. Rh