SKIN AND BLOOD DISEASES 241 



infectious, and one horse will catch It quickly from 

 another If the same harness, brushes, or blankets are 

 used for both. Everything that has touched a horse 

 with eczema should be disinfected by putting it in 

 naphtha, or in a solution of one part of corrosive sub- 

 limate to 500 parts of water, or in boiling water. 



MANGE 



Mange is caused by an animal — a microscopical 

 insect. Mange is sometimes hard to distinguish from 

 eczema. The itching is usually greater than it is with 

 eczema. Mange, in the most common form, consists 

 of a multitude of little hard pimples, which feel as if 

 small seeds had been sown at the roots of the hair, and 

 had adhered to the skin. There is a little scab on each 

 of these pimples, in which are two or three hairs, and if 

 the scab is removed, a small red spot appears. The 

 itching is intense. In a short time, the hair falls off, the 

 skin becoming dry, wrinkled, and scaly, with raw spots 

 and cracks. 



Thorough treatment is necessary in order to destroy 

 the parasite. The skin should first be well washed 

 with soap and warm water, applied with a brush, so 

 as to remove the scales and permit the close application 

 of the dressing. Paraffine oil applied once a day and 

 allowed to dry on the skin is usually effective. Perhaps 

 better is the following mixture : 



Oil of tar 2 ounces 



Kerosene Yz ounce 



Sulphur 2 tablespoonsful 



Cottonseed oil enough to make the whole i pint. 



