Chapter IV

, or the application of _brewers’ yeast_. (See chapter on Ulcers.) Of great value also will be found the silver ointment of Credé (_Unguentum Credé_). This permits of absorption of silver through the unbroken skin (as in the case of ung. hydrarg.), and the dissemination throughout the system of the antiseptic virtues of the silver itself. To ensure its greatest efficiency this ointment should be thoroughly rubbed in, especially over parts which are not too tender. Many cases of septic infection promptly yield under the influence of the argentine preparations which Credé has lately introduced.

In suitable cases also the subcutaneous injections of _antistreptococcic serum_ will be followed by beneficial effects. The earlier the injection is given the better the prospect of benefit. Evidence is strongly in favor of this serum as a prophylactic measure, especially before operations, when septic pneumonia or other septic accidents are feared.

Another measure of great utility in selected cases is the intravenous infusion of a solution of Credé’s soluble silver, made with 1 gram of silver in 1000 Cc. of sterilized water at a temperature of 105° to 110°. In cases of profound toxemia a small amount of blood may be withdrawn (50 to 400 Cc.), for reasons stated in