86 OF THE DISEASES 



crust at the heels, and in shortening the toes, so as 

 to bring wear on the heels. Additional pressure 

 may also be given in the stable by the use of 

 Cherry's felt pads. 



These remedies, however, sometimes fail in 

 effecting a thorough cure, and the disease, though 

 it does not extend, becomes chronic. 



When the cause has its origin in navicular 

 disease, little more can be done than to keep the 

 frog scrupulously clean, and to dry up the dis- 

 charge as soon as it appears. 



For chronic thrush, when not arising from navi- 

 cular disease, we recommend a remedy that will 

 strike at the root of the evil. Let the horse be 

 shod with tips and the frog be boldly exposed to 

 wear and pressure. Nature has made the frog of 

 the horse as a cushion, as an elastic pad to receive 

 on itself concussion, and to lessen it in other parts of 

 the frame. Only let it be subjected to that wear 

 and pressure before the disease has run too great 

 a length, and it will soon become sound and strong. 



If however thrushes are long neglected, the 

 neighbouring parts become affected, and in bad 

 cases the whole sensitive sole is involved. The sole 

 is then said to be " under-run," or, in other words, 

 the unhealthy secretion being greatly increased, 

 and unable to find sufficient exit through the in- 

 sensitive frog, burrows between the sensitive and 

 insensitive sole. 



