DISEASES OF THE SKIN. 285 



animal will be stiff and walk in a j^eculiar, stiff manner. It 

 sometimes takes on an odematoiis condition, extending as high as 

 the hock. 



Tkeatment. — Place the animal in a comfortable, loose box, 

 and give rest. Give eight drachms of aloes. If the irritation is 

 severe, poultices should be used; they prove very beneficial by 

 softening the i3arts and bringing about a healthy action. Glyce- 

 rine should be applied on the heels on going out and a poultice 

 on coming in. A lotion of sulphate of zinc, six drachms, one 

 ounce of sugar of lead, to a quart of water may be used. Car- 

 bolic acid, one part of acid to twenty parts of water, is beneficial. 



The acute forms of erythema are often witnessed in prolonged 

 wet weather, involving the limbs to a certain extent; sometimes 

 all four legs, arms, thighs, and abdomen are covered by patches 

 of superficial inflammation. 



MUD FEVER. 



Its cause is similar to cracked heel, as wet, dirt, washing the 

 legs. It is generally seen in the winter and spring months. 



Symptoms. — There will be discovered a superficial inflamma- 

 tion of the skin. The pain is severe, the hair loses its connection, 

 coming off in patches. Suppuration sometimes takes place in the 

 flexures of the knee, hock, and pasterns. The appetite is affected, 

 the pulse runs up, and there may be some rise in temperature. 



Treatment. — Give six drachms of aloes internally, and apply 

 the zinc, lead and acid lotion to the parts externally. Carbolic 

 lotion, one to twenty, may be used. The zinc and lead lotion pre- 

 viously referred to is highly beneficial. 



HERPES. 



This disease is expressed by patches of irregular form and 

 variable size, upon each of which there arises groups of vesicles. 

 The vesicles are larger than those of eczema, and contain a milky 

 substance. It is generally confined to the lips, but may involve 



