Most of the recent Fluxes, which I saw, were at first attended with a good deal of Fever, and Pain in the Bowels; and required more or less Blood to be taken away, according to the Strength of the Patient, and the Violence of the Symptoms.
When the Patients were strong, and complained of sharp Pain of the Bowels, attended with a Fever, we used the Lancet freely, nor were we discouraged from bleeding in the Beginning by the low quick Pulse which often attended the Disorder; and we frequently found the Pulse rise as the Blood flowed from the Vein. But when the Sick were low and weak, without much Pain or Fever, and the Pulse was soft, we were more sparing of the vital Fluid[34].
As the Disorder was for the most part attended with Sickness in the Beginning, we gave a Vomit after bleeding; which not only discharged the Contents of the Stomach, and a Quantity of Bile, but relieved the Sickness, and frequently threw the Patient into a breathing Sweat; and made the Purgatives which were given next Day operate more freely, and with more evident good Effects than where no Vomit had been administered.—If in the Course of the Disease the Sickness returned, the Emetic was repeated; and we often observed, when the Flux was obstinate, that well-timed Vomits greatly promoted the Cure.—The Vomit we commonly employed was the Powder of Ipecacuana, which we gave from ten to twenty Grains; and where the Patient was strong, and we wanted to make a free Evacuation, we added one, two, or three Grains of the Tartar Emetic; which encreased the Strength of the Vomit, and commonly operated likewise by Stool[35], as Dr. Pringle has observed.
Next Day we ordered a Purge to empty the other Parts of the alimentary Canal. The Purgative, that at first was most employed for this Purpose, was Rhubarb; but upon repeated Trials we did not find, that, in general, it answered so well, in this first Stage of the Disorder, as the sal catharticum amarum, with Manna and Oil; which operated without griping or disturbing the Patient, procured a freer Evacuation, and gave greater Relief than any other purgative Medicine we tried. Mr. Francis Russel, Surgeon to the British Military Hospital in America, who was formerly Surgeon to the Island of Minorca, was the first Person who informed me (in the Year 1757) of the Use of the sal catharticum amarum in the Dysentery; he told me, that the Year before (1756) the Dysentery had been very frequent and very fatal at Gibraltar; and, after trying Variety of Medicines, he had found nothing give more Relief, or contribute more to the Cure, than repeated Doses of these Salts.
As a great Part of the Cure depended on the frequent Use of gentle Purges[36] in the Beginning, to carry off the corrupted Humours; the Purgative was repeated every second, third, or fourth Day, as the Case required; the Operation of the former Purge, and the Symptoms, determining the Frequency of the Repetition. It was surprising with how little Loss of Strength the Sick bore the Operation of these Purges; I have sometimes given them to strong People every Day, for two, three, or four Days successively; and observed that the Patient, instead of being weakened, seemed stronger, and more brisk and lively, after the Operation of each, from the Relief it gave; by evacuating those putrid, corrupted Humours, which kept him perpetually sick and uneasy, while they remained within the Bowels.
Though Rhubarb did not answer so well in the Beginning as the saline Purges; yet afterwards in the Course of the Distemper, when the Patient did not complain much of Gripes, half a Drachm of Rhubarb, either by itself or in a saline Draught, proved a good gentle Purge; and given with six or seven Grains of Calomel, was found to be a good Medicine, when the Disorder was attended with Worms.
In the Evening, after the Operation of the Purge, we gave an Opiate; and repeated it at Nights, in the Intervals between the Purges; but were obliged to be very sparing of the Dose, while the Disorder continued in its acute State; the Opiate was only given in a Quantity sufficient to mitigate the Pain, and to procure Rest, but never so as to stupify the Patient, or prevent a due Discharge by Stool; though we were often obliged to encrease the Dose, as Use made it familiar to the Patient.
In the Intervals between the Purges, we gave in the Day, the Mindereri Draughts with the Mithridate; or the saline Draughts with the Addition of four Drops of the tinctura thebaica; or some such mild diaphoretic, every four or six Hours; which helped to keep up a free Perspiration, without any Danger of stopping the Purging; and for the most part answered much better than the Diascord, or Philonium, or other strong Astringents and Opiates commonly prescribed for this Purpose; which were always liable to check the Purging too much, and bring on severe Gripes attended with Heat and Fever[37]; and therefore we seldom made Use of them in this first Stage of the Disorder.