150 DISEASES OF THE HOG. 
phur and ten grains of nitrate of potassium at a 
dose three times a day in the food and continue it 
for “two weeks, if necessary. The skin should be 
well washed with a solution made by dissolving one 
ounce of carbonate of potash in a quart of soft 
water, then use clean water to wash it off; repeat 
the washing once a week. 
PRURIGO. 
This is an eruption of pimples having nearly the 
same color as the skin and attended with excessive 
itching. The eruption is often confined to one spot 
and sometimes it attacks several parts of the body 
at the same time. The parts most usually affected 
are the neck and shoulders. 
The only symptom of this disease is the constant 
excessive itching. From the want of color the 
pimples are not observed, but the animal rubs 
itself so severely that the skin often becomes 
abraded, sometimes small black scabs may be seen. 
By running the fingers over the affected part the 
skin will feel rough or the pimples may be de- 
tected. It may occur at any period of the animal’s » 
' existence. . 
Treatment: As the majority of skin troubles are 
the result of faulty digestion the condition of the 
stomach should be attended to. Give from one to 
two ounces epsom salts and change the diet. If 
the animal is in a debilitated state give thirty drops 
syrup iodide of iron at a dose in a little water three 
times a day after meals, or five drop doses three 
times a day of Donovan's solution of arsenic. Bathe 
