138 DISEASES OF HORSES AND CATTLE. 



Prurigo. — This disease is caused by a deranged 

 state of the system and usually affects the neck, 

 head, mane, root of tail, and sometimes the hind 

 quarters. 



Treatment: Give a dose of physic or bran 

 mashes with nitrate of potassium in half-ounce 

 doses twice daily for a week. Wash the affected 

 parts with one ounce of sulphuric acid mixed in a 

 quart of water. 



Acne. — This is a formation of pimples or small 

 abscesses, which form on the skin, usually scat- 

 tered over the sides of the body and under the bel- 

 ly. In cows usually on the udder and inside the 

 thighs. In some cases they break and discharge 

 a little matter; they then dry up and soon heal. 



Treatment: Give a dose of physic followed by 

 Fowler's solution of arsenic in ounce doses once 

 daily in mash. If there are any sores use a little 

 oxide of zinc ointment. 



Pityriasis. — This is a scurfy condition of the 

 skin usually seen in horses which have been win- 

 tered out of doors and fed on innutritious food. 

 Change the food and give boiled flaxseed and a 

 dram of sulphate of iron night and morning in bran 

 mash. 



Alopecia (Baldness). — In the horse this is usual- 

 ly the result of applying too irritating substances 

 to the skin, such as the strong acids, using blisters 

 on the same part before it has healed from the 

 effects of the first one, and from wounds not prop 

 erly treated. When the hair bulb, or root, which 

 is situated beneath the skin, is destroyed, the hair 



