72 THE DISEASES OE THE HORSE. 



and reclothe ; mash diet or green food ; laxative injec- 

 tions; purge if necessary. Ammonia acetate solution; 

 potassium nitrate and chlorate; other saline electuaries. 

 Hot fomentations ; stimulating embrocations to throat. 



Chronic form : Isolate ; rest or light work ; if the coat 

 is rough, clip or singe. Arsenic, iron, copaiba, terrebene 

 improve general condition. Inhalation or spray of sul- 

 phurous or carbolic acid or iodoform. Astringent nasal, 

 douche or spray; blister over nasal sinuses. (For doses, 

 see pages 13 to 29.) 



SORE THROAT (LARYNGITIS), 



Is a rather common, rapid, and dangerous disease. The 

 inflammation usually extends to the pharynx and contigu- 

 ous parts. The swelling and mucous accumulations some- 

 times cause death by suffocation. The causes are the same 

 as those of catarrh and bronchitis, and most of the effects 

 and complications are the same also. Long-continued and 

 hacking coughs are frequently present. 



Robertson divides the disease into two forms — catarrhal 

 and swollen. He also speaks of a chronic form, consisting 

 of muscular wasting and degeneration, with adventitious 

 growth and changes of inherent tissue — the same as in 

 roaring. 



Symptoms. — Head elevated and protruded; more oi 

 less difficulty in swallowing ; ropy and tenacious saliva ; 

 cough at first hard and rather sonorous ; as the disease 

 advances and the secretion increases, it is less resonant, 

 rather suppressed, and emitted with evidence of pain. 

 More or less fever ; restless ; stamps, tosses head, pulls 

 backward. Pulse high, eyes prominent, legs and ears cold. 

 Spasms of the larynx sometimes occur, followed by great 

 difficulty in breathing, loud, shrill, trumpet-like sounds, &c. 



Purple-hued nasal membrane, difficulty in breathing, 

 stupor, anxiety, restlessness, &c, according to Robertson, 

 are characteristic of the swollen form of laryngitis. 



