A more powerful remedy than salicylic acid, where quinia has failed, is the Warburg's tincture. Some patients find, however, that it is somewhat difficult to retain upon the stomach.
Not many years ago, owing to the encomiums of Fordyce Barker,75 the tincture of veratrum viride was in great favor in puerperal fever as a means of reducing the excited pulse of inflammation. The plan recommended was to administer five drops hourly, in conjunction usually with morphia, until the pulse was brought down to 70 or 80 beats to the minute. If the pulse had once been reduced, then three, two, or one drop hourly would be found sufficient to control it. Vomiting and collapse from its use were no cause for alarm, as they were temporary symptoms, and were followed by a fall of the pulse to 30 or 40 a minute, which was rather of favorable prognostic significance. In the rapid pulse of exhaustion, however, veratrum should not be given. Since the introduction of the thermometer into practice the reduction of the pulse by veratrum has been found to be associated with a fall in the temperature of the body. Of late, however, veratrum has gone rather out of vogue, not because it is not a very effective agent, but because its administration is an art to be acquired, and cannot safely be entrusted to an unskilled assistant. Then, too, in the last ten years there has grown up a better acquaintance with less dangerous remedies.
75 The Puerperal Diseases, p. 347.
Braun recommends in severe cases, where quinia alone is without effect, to give in addition from twelve to twenty-four grains of digitalis in infusion per diem until its specific action is produced. Unlike veratrum, digitalis effects a permanent slowing of the heart. By prolonging the cardiac diastole and contracting the arterioles it allows the left ventricle to fill, restores the arterial tension, diminishes correspondingly the intravenous pressure, and promotes absorption. Its tendency to produce gastric disturbances and the distrust felt as to its safety have prevented its becoming popular in practice.
Alcohol as an adjuvant to treatment is indicated in all cases, whether quinia or salicylic acid or veratrum be simultaneously employed. It stimulates and sustains the heart, it retards tissue-waste, and is in itself an antipyretic of no mean value. Usually I give it in conjunction with quinia, one or two teaspoonfuls hourly of either whiskey, rum, or brandy, in accordance with the recommendation of Breisky.76 But many years before I had learned from my friend Prof. Barker that the specific influence of veratrum was in many cases not obtained until the use of alcohol was combined with it.
76 Ueber Alcohol und Chinin-behandlung, Bern, 1875.
The antipyretic action of drugs is probably due for the most part to some direct influence they exert upon the oxygenation of the tissues. Of course the less the fire the less the heat. It is well, however, to support their internal administration by the external employment of cold. Cold owes its effect in fevers partly to the abstraction of heat from the body-surface, and in a still more important degree to the impression which it produces upon the nervous system. In healthy persons the action of cold is to increase the consumption of oxygen and the production of carbonic acid. The additional heat thus generated renders it possible to sustain the vicissitudes of climate. In fevers the primary effect of cold is similar in character. Its main therapeutical action is derived from its secondary influence upon the nerve-centre which regulates the body-heat. If the cold employed be sufficiently intense or sufficiently prolonged, there follows, not always immediately, but in the course of an hour or two, a marked lowering of the temperature, which can only be accounted for by assuming an indirect influence exerted through the sympathetic nerve and the medulla oblongata. This peculiarity renders the external application of cold a most valuable addition to the therapeutical resources available in fevers.
In cases of moderate severity frequently sponging the patient with cold water will be found to be a grateful practice. An ice-cap to the head, where the blood lies near the surface, will often affect the entire temperature of the body. From immemorial times it has been employed to control delirium and promote sleep. An ice-bag placed over the inguinal region is locally beneficial to deep-seated pelvic inflammations, and, according to Braun, is capable of effecting a rapid fall of temperature. Ice-cold drinks should be freely allowed.
Schroeder recommends a permanent stream of cold water in the uterine cavity by means of a large irrigator and a drainage-tube; others advise cold rectal injections maintained for long periods by the aid of a tube with a double current.
In fevers of great violence the systematic application of cold by means of baths or the wet pack is capable in some cases of rendering important service. The temperature of the bath should range from 70° to 80°. Its duration should not exceed ten minutes. The patient should, when removed to the bed, be wrapped in a sheet without drying, and should be comfortably covered. In employing the wet pack two beds should be placed side by side. The body and thighs of the patient should be wrapped in a sheet wrung out in cold water, and be allowed to remain in the pack from ten to twenty minutes. As the sheet becomes heated the patient should be placed in a fresh one upon the second bed, and the transfers should be continued until the desired fall of temperature is effected. Braun claims that four packs are equivalent in action to one full bath.