480 Veterinary Medicine. 



a saline (Glauber salts, Epsom salts, or for dogs, calomel). In 

 the horse aloes acts well, the eruption often disappearing as soon 

 as encreased secretion and peristalsis sets in, and long before 

 purgation is shown. A general, unsightly, eruption will dis- 

 appear in a night so that in the morning the animal seems in 

 perfect health. In other cases several days elapse before the 

 urticaria entirely disappears. In such cases alkaline diuretics 

 may be given (bicarbonate of soda, acetate of potash, borax, 

 cream of tartar). Bitters (nux vomica) will prove of value in 

 restoring the deranged tone of the stomach. Antiferments like 

 naphthaline, thymol, or calcium sulphide may be resorted to. 

 In obstinate cases arsenic with excess of bicarbonate of soda or 

 potash will sometimes prove of value. 



lyocall}' the irritation may be reduced or annulled by applica- 

 tions of cold water, by salt water, by weak solution of potassium 

 or sodium carbonate, by permanganate of potash, or by carbolic, 

 menthol, or chloral lotion. Carbolic acid 2 drs., alcohol 2 ozs., 

 and glycerine 2 drs. , in a pint of water, has been specially rec- 

 commended. 



After recovery a moderate, slightly laxative and easily digesti- 

 ble diet should be given. Indeed in mild cases the simple regula- 

 tion of the diet will be effective, without internal or local medica- 

 tion. 



PRURITUS. ITCHING. HAUTJUCKEN. 



Definition. A functional nervous disorder, characterized by- 

 intense itching and disposition to rub and scratch, without any 

 appreciable structural change in the skin of the part. 



Causes. Though itching is shown in nearly all skin diseases 

 at some part of their course, yet that is sufficiently accounted 

 for, by the local lesions, congestion, papules, scurf, vesicles, 

 pustules, rigidity, etc., and above all by the presence on the 

 integument of vegetable or animal parasites which create an active- 

 irritation. But such pruritus is essentially .symptomatic of the 

 visible local cause and is to be classed under 'the head of the 

 particular disease, eruptive or parasitic, of which it is so promi- 

 nent a feature- In pruritus on the other hand the itching is the 



