DISEASES OF DOMESTIC ANIMALS 597 



vomica; and give cattle, of the latter mixture, 3ii; Sh. and Sw. gr.xx on feed 

 twice daily (Moussu). Adrenalin. 



Ostitis. See Spavin, Ring Bone. 



Sometimes tuberculous. In acute stage, rest of part and cold application, 

 as cold swab or continuous irrigation, or ice bag. Pliysic, soft and restricted 

 diet. In subacute and chronic stages, firing, blistering and rest. 



Otorrhea (In Dogs). Canker of the Ear. Otitis Externa. 



In the acute stage, with much pain, give frequent and long-continued in- 

 jections of hot solution of saturated boric acid, or 3 per cent, carbolic, or 

 1 to 8,000 corrosive sublimate. Use fountain syringe and avoid any forcible 

 injection, allowing water to flow in slowly. Carbolic solution most anes- 

 thetic. Dry out canal after syringing and blow in dry pure boric acid. It 

 is well to keep loose absorbent cotton plug in ear during treatment. If there 

 is much swelling of the canal, scarify it. In the acute stage, give two to 

 three compound cathartic pills. Diet of milk, broths and bread. When the 

 acute stage subsides, use astringent injections, as 2 to 4 per cent, solutions 

 of lead acetate, zinc or copper sulphate, or silver nitrate. To avoid pain of 

 injection one may blow in a little powdered cocaine first. Diachylon oint- 

 ment is also useful in chronic form, and boric acid in alcohol (1 to 20). The 

 occurrence of granulations in the canal calls for use of stick nitrate after 

 cocainization. 



Over-Reach, Wound of Coronet From, (In Horse). 



Treat wound with continuous wet compress of 2 per cent, lysol for a few 

 days, then with Peru balsam and bandage. To avoid: protect coronet With 

 pad, and rasp off toes of hind feet, setting shoes back and rounding off toes 

 of hind shoes. 



OxYURiDES. See Parasites. 



Palpitation. See Nervous Palpitation of Heart. 



Paralysis. 



1. Hemiplegia, one-sided paralysis. Rare, due to apoplexy, cerebral 

 thrombosis or embolism, tumor, fracture of skull, abscess, parasites, etc. 

 Attend to bladder and rectum, change position of patient and supply good 

 bedding. Later use electricity, and administer potassium iodide. Treatment 

 generally inadvisable, as recovery is protracted and partial. 



2. Paraplegia or paralysis of the posterior extremities. Treatment de- 

 pends upon the cause. Thus spinal inflammation (meningitis), fracture, 

 hemorrhage, tumor, may induce it. 



In dogs, obstinate constipation, worms, indigestion, abnormal dentition, 

 nephritis, cystitis, lumbago and heart disease (disturbed spinal circulation 

 or thrombosis of the femoral arteries), occasion paraplegia. Make a thorough 

 physical examination to eliminate heart disease, lumbago, nephritis and 

 cystitis. In teething, lance the gums if inflamed. Usually, thorough evacua- 

 tion of the bowels by castor oil and enema or manual removal of feces, and 

 light diet of broth, will lead to a cure, when constipation is a cause. If there 

 is vomiting, give 2 to 3 compound cathartic pills or calomel, cerium and bis- 

 muth by the mouth, and use enemata and manual removal of feces. 



In the horse, paraplegia occurs sometimes transiently during colic, and in 

 mares ia heat There is also an infectious enzootic form. Apparent para- 

 plegia in the horse if often really hemoglobinuria. Treat causative disease. 



In cattle, paraplegia is seen in impaction of the rumen and parturient apo- 

 plexy. (See Indigestion and Apoplexy, Parturient.) In general, evacuate 

 the rectum and bladder and apply hot fomentations and sinapisms to loins, 

 and later give strychnine and blister loins (unless there is a nephritis), and 

 potassium iodide. 



3. Local paralysis due to a neuritis, from blows, pressure, injuries, cold, 

 or central lesion. Commonest form of paralysis in the horse. Paralysis of 

 the facial, trigeminus, radial, crural, tibial, obturator, etc., not infrequent, 

 and recovery commonly occurs. Treatment — Remove sources of pressure or 

 irritation, as halter in facial paralysis. Use preferably galvanic current from 



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