408 DISEASES OF THE SKIN. 



In some cases where the dog has black-tipped hair it is also notice- 

 able. 



Therapeutic Treatment. The treatment consists of wash- 

 ing with alcoholic soap, and a diluted tincture of cantharides is 

 also useful. It is advisable in alopecia areata to use antiparasitic 

 agents, such as diluted tincture of iodine (Friedberger and Froh- 

 ner), or an alcoholic salicylic acid (10 per cent.). The principal 

 therapeutic agents, however, are rubbing with a strong brush, 

 increasing the nutrition of the skin, plenty of exercise, and, above 

 all — patience. 



