COLD IN THE HEAD. 367 



of inflammation. And, acting according to similar principles, we supply 

 the animal with green meat and laxative food, not forgetting to support nis 

 vital powers after the virulence of the attack has somewhat abated. 



A blister may also act well by drawing away blood from the part, and by, 

 later on, causing the breaking up and absorption of any deposits which may 

 be left as a result of the inflammation. A course of iodide of potassium 

 will tend to dirninish the risk of roaring being a result of the attack ; for 

 this medicine hastens the removal of inflammatory deposits which might 

 press upon those nerves of the larynx that become affected in roaring. 



PRACTICAL TREATMENT.— Allow the horse a plentiful supply 

 of fresh air; Clothe warmly. Hand-rub the legs, and rub into 

 tliem the following stimulating liniment : — 



Soap liuiment ... ... ... ... ^ pint. 



Strong liquid nmmonia ... ... ... 1 drachm 



and apply flannel or straw bandages. 



Make the horse inhale steam from boiling water, which may be 

 mixed with turpentine, provided that it does not distress him. 

 Foment the throat, and, aiter that is done, apply the above lini- 

 ment. If the case be at all serious, blister the tliroat with tincture 

 of cantharides. Give a drachm of the extract of belladonna twice a 

 day, place it between the horse's teeth, instead of giving it as a 

 ball, which would irritate the throat ; or give the electuary of 

 belladonna and camphor as prescribed on p. 368) ; give ^ oz. nitre 

 daily, dissolved in the water or mixed in the food. Allow gruel, 

 linseed tea, and'ljnseed and bran mashes, and substitute freshly- 

 cut grass for hay. When the attack has subsided, the horse's 

 strength can be kept up by gruel and milk with eggs beaten up in 

 it. Drenches and balls should not be used, as they w^ould irritate 

 the throat. 



After an attack, it is perhaps the safest plan to blister the skin 

 with biniodide of mercury ointment (1 to 8 of lard), under the seat 

 of the disease, three or four times in succession, and to put the 

 horse on a course of iodide of potassium — two drachms twice a 

 day in the water — ^for a fortnight or three weeks. 



In severe cases, tracheotomy is often the only means of saving 

 the patient's life. 



Acute Nasal Catarrh {Cold in the Head). 



This is inflammation of the mucous membrane which lines. the 

 nostrils and air passages of the head. It it generally caused by 

 exposure to cold and wet, aided by change of temperature, and 

 appears to be capable of being propagated by. infection. 



SYMPTOMS. — Catarrh is often ushered in by sneezing. At first 

 the mucous membrane which lines the nostrils and eyelids is red 



