136 DISEASES OF HORSES AND CATTLE. 



month. Wash the skin as above. If the skin 

 should become thick and scaly use biniodide of 

 mercury two drams, vaseline four ounces. Rub on 

 a little with the fingers. Never cover over much 

 surface at a time. For example, if the neck is the 

 part affected, take one side at a time, and in three 

 davs take the other side, and so on in other parts 

 of the body until you get all over the animal if nec- 

 essary. One application is usually all that is need- 

 ed ; but if it should not cure it, repeat in two weeks. 

 Tie the head of the animal so that it cannot get its 

 mouth to the part for the first ten or twelve hours ; 

 after that the irritation will be over. This is a fine 

 remedy if properly used. 



Urticaria, Nettle Rash, Surfeit. — The symptoms 

 are sudden appearance of elastic patches or prom- 

 inences on the skin, accompanied by great itching 

 of the part, and it may pass off as suddenly as it 

 appeared. There is a second variety of this dis- 

 ease, in which the lumps may arise on every part 

 of the body, some large, others small, and if they 

 do not pass off soon, may form vesicles and dis- 

 charge a glutinous fluid, and the animal may ap- 

 pear dull, the appetite may be impaired and the 

 animal's health disturbed. This disease may 

 make its appearance on any horse, but it is usually 

 caused by the animal being overfed and having 

 no exercise, or from the animal's being poorly fed 

 and over- worked. In the spring I have seen it 

 in colts which had been poorly fed all winter. 



Treatment: If the animal is fat give the same 

 dose as recommended for eczema; if the animal is 



