118 DISEASES OF CATS 



bing it along the ground. Manipulation is 

 painfiul and is resented. Upon examination, 

 the ear flap is seen to be soiled with a dark 

 colored discharge, swhich collects in the convolu- 

 tions of the concha, and which issues from the 

 external auditory canal. If looked for care- 

 fully, the parasite can usually be seen as a 

 minute speck moving among the debris. In 

 advanced cases the ear flap, meatus and canal 

 may be the seat of ulcerations, in which cases 

 the parts are exceedingly tender, and the dis- 

 charge is more offensive. In other cases gran- 

 ulktions block up the canal and meatus so that 

 an inspection of the interior is impossible. In 

 long-standing and neglected cases, infection 

 may extend to the middle ear and to the men- 

 inges, when symptoms of cerebral mischief will, 

 develop. 



Treatment. — The preliminary step is a com- 

 plete clean-up of the whole external auditory 

 apparatus, and this is best accomplished by fill- 

 ing the ear with hydrogen peroxid to loosen 

 up accumulations of wax and discharge, fol- 

 lowed by the use of a cotton wool swab. After 

 the ear has been freed from all filth it should 

 be well dried and the following lotion povu-ed 

 into the canal and smeared all over the ear flap, 

 taking care to reach all crevices : Beta napthol 

 dram 1, ether drams 3, olive oil drams. 2. The 

 meatus should be plugged with a piece of wool 



