120 CANKER. 



The tendency of the disease is to invade the innermost portions of the 

 tube, becoming then the so called " internal canker." 



The disease may have its origin either without or deep within the pas- 

 sage. In the latter little or no redness or swelling will be visible, but an 

 offensive odor and a discharge is characteristic evidence. 



The inflammation if uncontrolled results in an ulceration, recovery from 

 which is often tedious and delayed. 



Treatment. — It is difficult for the writer to appreciate why the older 

 authors gave to canker that importance with which they invested it in 

 their works on canine diseases. 



No less amazing is the treatment they employed, which possibly is a 

 solution of the enigma, for remedies such as many advised, could only 

 have aggravated the disease and retarded recovery. 



The first law to be religiously complied with is perfect cleanliness; very 

 many cases in their early stages will yield to that treatment alone. 



This fact must be remembered in the selection of medicines to be applied 

 within the ear, no more delicate organ exists in the body, and none are 

 more easily injured by wanton applications. An eminent aurist once 

 thus advised a patient, who was addicted to using a small ear spoon to clear 

 the passage. " Never put anything into your ear but your elbow," advice 

 which if followed, would materially lessen suffering and save many their 

 hearing unimpaired. 



To insure cleanliness the outer ear should be frequently sponged with 

 soap of an unirritating nature, and warm water. If the passage has been 

 invaded by the inflammation, water must be gently injected, sufficient in 

 quantity to remove all discharge and everything foreign within. It mat- 

 ters little the syringe used, provided it be large and easily managed ; those 

 small glass affairs are an abomination. The ear should be syringed several 

 times daily and after the operation the following used. — 



R Acid. Carbolici 3 ss 

 Glycerin® % ss 



Aquas Sijss 



Ft. Mist. Sig. Drop a little in the ear. 



Neither this nor any other application should be used cold, but it should 

 be of the same temperature as the body. 



In syringing the water should be warm ; a good method to estimate 

 properly how hot it can be comfortably borne by the animal, is for the 

 operator to inject some against his own cheek, which is far more sensitive 

 than his hand. 



If frequent syringing does not relieve the pain and itching, it will be 

 well to use the following — 



