Canker of the Ear, 423 



This is to be applied one day, washed ofif the next with 

 soft soap and warm water, and then the ointment rubbed in 

 again, and so on until three applications have been made and 

 w^ashed off. The dog should then be well, but the process 

 must be repeated if the itching returns. Another useful 



mange ointment is — 



Take Tanner's oil 1 quart. 



Spirits of turpentine, 1 gill. 



Flour of sulphur, half pound. 

 Mix and use as the last. 



If the dog is in poor condition, it will add to the certainty 

 of this treatment if he is given two or three drops of Fow- 

 ler's solution of arsenic, two or three times a day, for a week 

 or two. This has a specific effect on the hair and skin of 

 animals. 



CANKER OF THE EAR. 



Causes. — Canker generally arises from some local injury 

 to the ear, by hitting it against an object, or by rubbing it 

 against the collar, chain, etc. The itching leads the animal 

 to flap the ear violently, and scratch it with his paw. This 

 aggravates the sore until it becomes intractable and malig- 

 nant. An ulcer is formed, with a foul odor, and may extend 

 into the ear and deeper parts, until the dog has to be killed 

 as a last resort. 



Treatment.— ^As a rule, canker is certainly and easily 

 cured, even when it has progressed to a considerable extent. 

 The follow^ing directions must be strictly carried out. Have 

 a light cap made of calico or merino, covering both ears, and 

 fastened under the chin, so that the dog cannot flap or scratch 

 his ears. Wash the ulcers on the flaps clean every day, with 

 soap and warm water, and after the washing, apply this oint- 

 ment : — 



Take Mercurial ointment, 1 drachm. 



Powdered camphor, 2 drachms. 



Oxide of zinc ointment, 1 oz. 

 Mix them well. 



