44 THE MANAGEMENT AND DISEASES OF THE DOG. 



OZ^NA, 



Though of common occurrence in the horse, is rarely seen in 

 the dog. The disease consists of a copious and fcetid discharge 

 from one or both nostrils. 



Causes. — Prolonged catarrh, irritation from the presence of 

 foreign substances in the nasal chambers or frontal sinuses, ■ 

 ulceration of the Schneiderian membrane, disease of the tur- 

 binated bones, unsound teeth. 



Symptoms. — Discharge as already described, which may 

 be continuous or periodical, obstructed breathing having a 

 rattling sound from the ingress and egress of air through the 

 said discharge ; frequent sneezing and occasional cough. 



Treatment. — The nostrils should be daily syringed with 

 warm water, and where there is ulceration or diseased bone, 

 either of the following lotions may be injected: 



I. — Alum 5 grains. 



Aqua I ounce. 



2. — Zinc chloride 5 grains. 



Aqua I ounce. 



3. — Nitrate of silver 5 grains. 



Aqua I ounce. 



The second recipe, where there is much foetor, is most 

 useful. 



If the disease proceeds from a diseased tooth, removal will 

 be at once necessary. If from polypus, the same course must 

 be adopted. 



Mineral tonics, and generous diet and free out-door exer- 

 cise, are essential adjuncts to the treatment. 



