276 DISEASES OF THE DOMESTIC ANIMALS 



tions may be hastened by freeing the skin all about the margins of 

 the ulcer and drawing the skin together by wire or silkworm gut 

 sutures. 



Sinus's are treated by the application of carbolic acid or tinc- 

 ture of iodine, by injection, or by curetting the sinus with a special 

 sinus curette. If a sinus does not close it is because of some foreign 

 body at its origin, as carious bone. 



In the treatment of fistulae the injection of the Beck ointment 

 has almost revolutionized the methods in vogue in human surgery. 

 Old fistulae of years' standing have been cured within a short time 

 by its use. The ointment is heated until soft and injected with a 

 sterile glass or metal syringe through the nozzle alone or through a 

 sterile rubber tube or catheter in the sinus until it is completely 

 full, and the sinus refilled every three days with a sufficient amount 

 of ointment to replace that which has escaped. The ointment is 

 composed as follows : 



Bismuth subnitrate . . . . - 6 parts 



White wax 1 part 



Vaseline 12 parts 



Soft paraffin 1 part 



Boil and mix and place in sterile jar. 



Very septic ulcers, as about the coronet of horses (phagadena 

 or carbuncle), should be disinfected by burning with the actual 

 cautery, or by curetting and the application of antiseptic poultices. 



Perforating Wounds of the Abdomen. — Protruding vis- 

 cera should be protected by sterile gauze wrung out in hot (115° F. ) 

 boiled water. The whole surrounding region should be sterilized, 

 as described for operative wounds. Prolapsed omentum should be 

 tied off and excised. Any protrusion of the bowel must be cleansed 

 in the most prolonged and painstaking manner by irrigation from a 

 pitcher or other vessel with warm (no u F.) sterile salt solution 

 (one level teaspoonful of sodium chloride to the pint of boiled 



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