DISEASES OF FARM ANIMALS 175 



Structures causing more or less lameness. In many- 

 instances the nail hole becomes closed up and the 

 collected matter may have to seek an outlet above 

 the hoof. To determine the trouble a very careful 

 examination of the hoof should be made, looking 

 for any opening leading into the foot, often detected 

 by discoloration of the part, or at an over-sensitive 

 point in the foot. 



Treatment should consist in making or enlarg- 

 ing the opening at a dependent part of the hoof, if 

 possible, so that all secretion formed in the wound 

 can find a ready escape to the outside. Without 

 free opening there is danger of tetanus (lockjaw) 

 developing. The wound should be thoroughly 

 cleansed, and washed with some mild disinfectant, 

 after which a small quantity of oil of turpentine 

 should be injected, and the wound packed with 

 calomel or iodoform and covered with a pledget 

 of cotton. If the wound is very deep or extensive 

 it may be beneficial, after thoroughly cleansing the 

 foot, to apply a hot bran or flaxseed poultice. Use 

 poultice for several days and change daily. 



GREASE HEEL.— A form of eczema that at- 

 tacks the skin of the heel and fetlock. Sometimes 

 the disease becomes so severe as to crack open, from 

 which blood oozes out. A crust forms and later 

 on becomes painful and disagreeable. To remove 

 the scurvy part that is noticed first, apply a poul- 

 tice, made of wheat bran or linseed meal. Change 

 the poultices two or three times during the day. 

 After removal each time wash with warm water, in 

 which has been put some carbolic acid or creolin,and 

 then apply the poultice again. After the poulticing 

 is ended apply a salve made of 4 tablespoonfuls of 

 oxide of zinc and 8 tablespoonfuls of vaseline. If 

 indigestion seems to be associated in any way, give 



