After Bleeding, if the Patient was costive, or complained of Gripes, he had a Dose of Rhubarb, or Salts, or a laxative Clyster; but where there was much Sickness of the Stomach, we gave a gentle Emetic[8] in the Evening, and the Purge next Morning. And if in the Course of the Disorder the Sickness and Nausea returned, attended with Griping and Costiveness, or very fetid loose Stools, these Medicines were repeated, and a gentle Opiate given in the Evening after their Operation. [8] Dr. _Pringle_ advises giving a Vomit, by way of Prevention, on the first Appearance of the Symptoms, and at Night to force a Sweat, by giving a Drachm of Theriac with ten Grains _Sal volat. Corn. cervi_, and some Draughts of Vinegar-whey, and to repeat the same the following Night; and says, he has often seen those Symptoms removed which he apprehended to be Forerunners of this Fever received by Contagion; but previous to Vomits, or Sweats, if the Person be plethoric, it will be necessary to take away some Blood. _Observ._ part III. ch. vii. sect. 5. Dr. _Lind_, in his _second Paper on Fevers_, p. 66. says, “To all who are supposed to be infected by Fevers, during this Stage of Rigours, a gentle Vomit is immediately to be exhibited before the Fever be formed, and before the Fulness or Hardness of the Pulse renders its Operation dangerous. If the Vomit be delayed too long, and especially if Bleeding must precede it, the most certain and favourable Opportunity of procuring Safety for the Patient is past.--That he has found it equally serviceable in preventing Relapses, when it is given at the Return of the Shiverings.” A loose Stool, or two, should be procured by the Emetic or Clysters, and he advises Sweating immediately after, in the manner recommended by Dr. _Pringle_. At other times “he gave five Grains of Camphire every four Hours, with large Draughts of Vinegar-whey. Eight Persons in ten, he says, got quite well by this Treatment.” I have never had sufficient Opportunities of trying this Method of Prevention, to determine any thing certain about it; but it may be worth while to practise it.