PREVENTION, SYMPTOMS AND TREATMENT 2 0I 



Abscess about the pharynx calls for incision of the skin, and 

 exploration by blunt dissection with the director or finger. Severe 

 dyspnea demands immediate tracheotomy. The direct application 

 of an 8 per cent solution of silver nitrate, or glycerite of tannin, 

 may be made to the pharynx in dogs twice daily; or y 2 dram of 

 glycerin, containing Tt\,v of tine, of ferric chloride, may be given by 

 the mouth hourly, while wet compresses or antiphlogistine are 

 applied to the throat. Swine are apt to die of suffocation and 

 should be given a smart fly blister, from ear to ear, and receive an 

 emetic of veratrum album or ipecac (of either, gr. 30 in food). 

 True follicular tonsillitis — as seen in man — and the pseudo-mem- 

 branous pharyngitis occur in swine. 



Pleurisy and Empyema. 



Acute Pleurisy may occur in all animals and is usually uni- 

 lateral. Acute primary or idiopathic pleurisy has been taught to 

 be generally due to exposure to cold, but, while cold may predispose, 

 the immediate cause must be bacterial. It has come to be known in 

 human medicine that most cases (80-98 per cent.) of primary 

 pleurisy (formerly attributed to cold) are due to tuberculosis, al- 

 though rapid and complete recovery is the rule. The same may 

 apply to many cases in veterinary practice. On the other hand, 

 pleurisy often originates from extension of infection in the neigh- 

 borhood, and becomes secondary to pneumonia (pneumococcus 

 pleurisy) of various kinds; from pulmonary gangrene or growths; 

 from disease of the pericardium ; mediastinum ; gullet ; peritoneum ; 

 and from injuries of the chest (broken rib) ; and caries of ribs, 

 sternum and vertebrae. In general infections the pleurisy may 

 originate from the same bacterial cause, as in parturient and other 

 septicemia; pyemia (streptococcus pleurisy); in articular rheuma- 

 tism; glanders; and very often in tuberculosis. 



Symptoms. — The symptoms of acute pleurisy are briefly : chills ; 

 fever; pain in chest, shown in movements or in pressure on the 



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