Those which come on suddenly, without any preceding Disorder, except sometimes a slight Qualm or short Loathing, and a Pain in the Loins and Knees; which are not attended with smart Pains nor a Fever (and frequently without any Pain, or any other Complaint) are oftener of Service than prejudicial. They carry off a Heap of Matter that may have been long amassed and corrupted in the Body; which, if not discharged, might have produced some Distemper; and, far from weakening the Body, such Purgings as these render it more strong, light and active. Sec. 326. Such therefore ought by no Means to be stopped, nor even speedily checked: they generally cease of themselves, as soon as all the noxious Matter is discharged; and as they require no Medicine, it is only necessary to retrench considerably from the ordinary Quantity of Nourishment; to abstain from Flesh, Eggs and Wine or other strong Drink; to live only on some Soups, on Pulse, or on a little Fruit, whether raw or baked, and to drink rather less than usual. A simple Ptisan with a little Syrup of _Capillaire_, or Maiden-hair, is sufficient in these Purgings, which require no Venice Treacle, Confection, nor any Drug whatever. Sec. 327. But should it continue more than five or six Days, and manifestly weaken the Patient; if the Pain attending it grows a little severe; and especially if the Irritation, the urging to Stool, proves more frequent, it becomes seasonable to check, or to stop, it. For this Purpose the Patient is to be put into a Regimen; and if the Looseness has been accompanied with a great Loathing, with Risings or Wamblings at Stomach, with a foul furred Tongue, and a bad Taste in the Mouth, he must take the Powder No. 35. But if these Symptoms do not appear, give him that of No. 51: and during the three following Hours, let him take, every half Hour, a Cup of weak light Broth, without any Fat on it. If the Purging, after being restrained by this Medicine, should return within a few Days, it would strongly infer, there was still some tough viscid Matter within, that required Evacuation. To effect this he should take the Medicines No. 21, 25 or 27; and afterwards take fasting, for two successive Mornings, half the Powder, No. 51. On the Evening of that Day when the Patient took No. 35, or No. 51, or any other Purge, he may take a small Dose of Venice Treacle.