88 THE PRACTICE OF VETERINARY MEDICINE. 



aggravated, by a change from cold to hot weather, and 

 by certain descriptions of food, barley particularly. It is 

 often noticed in horses on pasture, as over ripe grasses will 

 produce it. After an animal has suffered from one attack, 

 he is more susceptible to subsequent attacks than he would 

 be if he had never suffered ; more particularly is such the 

 case when the animal is fed on a highly stimulating diet. 



Symptoms. — There is dryness of the hair, and itchiness of 

 the skin to a greater or less extent. In some cases it is 

 very severe, causing the animal to rub his head and neck 

 with very great violence on being brought in from work. In 

 some cases immediately on removal of the bridle he will rub 

 the parts until extensive abrasions of the skin and destruc- 

 tion of the hair are produced. When running out he will 

 often level the fence of his pasture in his frantic efforts to 

 obtain relief The head, neck, the region of the mane, root 

 of the tail, etc., are the parts most affected ; the vesicles 

 contain an ichorous fluid. The disease generally attacks a 

 number of horses in the same establishment. In such a 

 case it is the result of bad management, which of course 

 affects all the animals alike. Simple eczema comes on sud- 

 denly, while mange comes on gradually, and it is quite as 

 difficult, if not more difficult to treat than mange. 



Treatment. — The treatment of simple eczema requires to 

 be both local and constitutional. Endeavour to allay the 

 irritation by having the parts thoroughly washed with tepid 

 water, also using castile soap ; after which the following 

 lotion may be used, hydrarg. corros., 5ii., spts. vini recti, 5iv., 

 aqu?e O.i. The above is a favourite prescription as a lotion. 

 Acid carbol. and water, one to sixteen, is also a useful appli- 

 cation. Tr. aconite and hydrocyanic acid well diluted form a 

 still more powerful remedy. A homoeopathic remedy is the 

 linimentum terebinth., composed of soap, turpentine, camphor, 

 and oil. A compound solution of iodine is also highly 



