from the different mixture of the Humors causing them.
IV. This Disease, in Infants, proceeds also many times from the putrid Humors collected in the Mothers Womb, and the impurity of the Maternal Blood, with which the Child in the Womb is nourished: and sometimes from the vitious Milk, which the Child sucks from its Mother or Nurse.
V. The Differences. It is ei∣ther dry and crusty, like a Scab; and then it is called Crusta la∣ctea, from its colour: and this is either small, little, and of no thick substance; and then it is called Tinea; or of a very thick and yellow substance, and then it is properly Crusta, or the Dry-Scald.
VI. Or it is moist, running, and full of Matter; called Tu∣bercula ulcerosa, or, the moist and running Scald: and this is either Achores, Ulcerous Pustles, out of which a glutinous, vi∣scous matter continually issues, which creates a very great Scabbiness: or Favi, wherein the substance of the Flesh and Skin is hollow, like to a Honey-comb or Spunge; out of whose spungy holes a purulent juice is seen continually to flow, which drying, becomes also a Scab; but by reason of its continual weeping, is apt often to fall off, and become raw again.
VII. It is also either recent, or inveterate; and both these may either be gentle, or malign: and they are accompanied either with a morphew-like Scab, or a crusty Scab; and that afflict∣ing either a part of the Head only, or the whole Head toge∣ther, sometimes with some of the adjacent parts.
VIII. The Prognosticks. A Scald-Head in the beginning is not dangerous; but is generally of very difficult cure.
IX. If it be inveterate, and stubborn, it is not cured without very much trouble: and many times it degenerates into Tinea, or there follows it a Defluvium, or Alopecia.
X. And if the matter which flows is very malign, it sometimes thro' its long continuance pierces to the very Skull, and penetrates that also: and sometimes it so corrupts the Cranium, that it is necessary to take it forth; whereby the Meninges of the Brain are laid open, and made bare.
XI. All sorts of Scald-Heads are for the most part long in curing, and rebellious Diseases; and often, when seemingly well, return again.
XII. The Cure. The Morbi∣fick matter is first to be eva∣cuated, with such things as purge salt and serous Humors; and the matter of the Purgation is often to be repeated•• for which pur∣pose, after using Pills, Pou∣ders, &c. it will be good to prescribe a purging Diet-drink, which may keep the Body in a course of Purging for some time.
XIII. But this Evacuation is best to be begun with an Eme∣tick, as Infusion of Crocus Me∣tallorum, Tartar Emeticum, or