30 DISEASES OF THE AIR-PASSAGES. 



have its seat — as it then probably has — within the sinuses, 

 the injections will do no more than temporary good, and per- 

 haps not that. There are many different kinds of injections : 

 alum, copper, zinc, lead, lunar caustic, &c. At a time 

 when there is mnch fetor, chloride of lime, in the proportion 

 of an ounce to the pint of water, makes a good injection. What 

 I commonly use, and find to answer very well in general, 

 is the kreasote injection, recommended some years ago 

 by Dr. Elliotson: should that not be found to give satisfac- 

 tory results, or to require a change, we may try the copper 

 injection : 



R Kreasotonis, 5j ; 



Liquor. Potass., 5ij ; 



Aquae Distillat., Oss. 

 M. pro injectione. 



or — 



R Cupri Sulphatis ; Aluminis, aa ^jss ; 



Aquae bullient., Oj. 

 Solve pro injectione. 



Either of these injections may be thrown up the nostrils 

 with a four-ounce syringe twice or thrice a-day. I have on 

 several occasions employed fumigation, and various medica- 

 ments in the gaseous form; but I cannot say I ever have 

 experienced any great deal of benefit from them : in gene- 

 ral I have found more efficacy in injections. The medi- 

 cines which have appeared to have taken most effect, given 

 internally, are preparations of copper and barytes, copaiba, 

 cantharides, and the cubebs and Cayenne peppers. That 

 which exerts the most speedy and decided operation is the 

 balsam of copaiba : like all the others, however, it cannot be 

 implicitly relied on ; in some cases it will in a few days cause 

 the discharge to cease temporarily or permanently, in others 

 no such effect will follow its administration. I give it in 

 ounce doses, rubbing as much linseed meal or oatmeal into 

 an ounce by measure of the balsam as the latter will take up, 

 and making the mixture into one or two balls, and adminis- 

 tering this dose morning and evening at first, and, after three 

 or four days, thrice a-day, according to the effects produced. 

 Cantharides may be given, in five-grain doses, to begin with, 



