70 OF THE DISEASES 



to the treatment previously recommended, caustic 

 applications must be inserted into the sinuses, in 

 order to get rid of the tough secreting membrane 

 which lines them, and to promote a new and 

 healthy secretion. No cure can be effectual with- 

 out the removal of the " core," or internal secreting 

 membrane of the sinuses. Some practitioners, 

 however, prefer to treat it by free incisions in the 

 first instance ; and subsequently apply stimulants 

 with the view of promoting adhesion and oblitera- 

 tion of the canal of the sinus. These cases, 

 however, always need the care of a veterinary 

 surgeon. 



When the internal disease is removed, the treat- 

 ment of the mere sore at the coronet is easy. In 

 fact, beyond keeping it clean, applying simple water 

 dressing, and occasionally caustic lotion, little need 

 in general be done. Occasionally, however, there 

 is a tendency to the growth of unhealthy granu- 

 lations round the sore, which will require to be 

 repressed by the application of pressure and 

 caustic. 



Care must be taken in all cases of quittor to 

 prevent the external sore healing over before the 

 internal disease is thoroughly eradicated. From 

 the vascularity of the parts in the neighbourhood 

 of the coronet there is always a tendency to this 

 action. 



In all cases of quittor a three-quarter shoe, or 



