. Diseases of the dog and their treatment. Fig. 152.—Ear-cap. iodide of potassium G and alcohol IG is injected into the cavity. Wethen apply a compressing dressing in the following manner: The ear is covered with antiseptic wadding on both surfaces. It is SEROUS CYST 431 then held in position bj- means of an ear-cap (Figs. 152, 153). This dress-ing must not be clisphiced, but allowed to remain for days. This methodhas been an element of uncertainty; in some cases it acts perfectly andin others, beyond setting up considerable irritation, it does not destroythe secreting surface and the abnormal
. Diseases of the dog and their treatment. Fig. 152.—Ear-cap. iodide of potassium G and alcohol IG is injected into the cavity. Wethen apply a compressing dressing in the following manner: The ear is covered with antiseptic wadding on both surfaces. It is SEROUS CYST 431 then held in position bj- means of an ear-cap (Figs. 152, 153). This dress-ing must not be clisphiced, but allowed to remain for days. This methodhas been an element of uncertainty; in some cases it acts perfectly andin others, beyond setting up considerable irritation, it does not destroythe secreting surface and the abnormal condition returns. McQueens method is very simple and produces good results. Hecarefully removes the hair from the ear and renders it antiseptic, andeither paints the ear with cocaine or administers chloroform, empties thesac by means of an aspirator syringe, and makes sure that it is com-pletely emptied. Sutures are then inserted radiating from the centreof the sac, about one-third of an inch apart, directly through the ear and. Fig. 153—Ear hood or net. tied on the outer or hairy side, thus producing a firm pressure betweenthe two surfaces of the sac and by that means get prompt union. Theear must then be irrigated with an antiseptic solution, carefully remov-ing all blood, etc., and dressed with antiseptic wadding, and furthercovered with an ear-cap. It should be dressed every day, and the suturesremoved at the end of a week. Another method consists in taking a scalpel and making a freeincision from one end of the sac to the other, then filling it in withtincture of iodine, and then keeping it clean and using an ear-cap. Simple emptying by means of a trocar or making a small incisionnever produces any good results, as the opening closes immediately andit soon fills up again. Sutures are not advisable, causing great order to prevent the too rapid closing of the incision, the removal ofa small crescent-shaped piece of flesh from the edge of the opening hasbe
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