INFLAMMATION AND WOUNDS 



213 



premises where several horses develop fistulous withers and 

 poll evil. If the cause then becomes known, it should be removed. 

 The surgical treatment consists in opening up the different 

 abscess cavities, providing com- 

 plete drainage for the pus and 

 destroying the tissue that lines 

 the walls of the cavities. Horses 

 that are prone to rub the region 

 should be prevented from doing 

 this, as such irritation retards 

 healing. Autogenous bacterins 

 should be used in addition to the 

 surgical treatment. A pus fis- 

 tula should heal from the bottom, 

 and if the opening becomes 

 closed, drainage should be re- 

 established. The daily treat- 

 ment is the same as recommended 

 for abscesses. Excessive cutting 

 and destruction of the tissues 

 with caustic preparations result in scarring and deformity of 

 the part. Such radical lines of treatment should be discour- 

 aged. We should not delay the surgical treatment of abscesses 

 in the regions of the poll and withers. 



Fig. 60a. — Fi.stula of the region of the 

 poll of the head. 



QUESTIONS 



1. Name and describe the different forms of inflammation. 



2. Give the causes and treatment of inflammation. 



3. Name and describe the different methods by wliich wounds heal. 



4. Describe the treatment of wounds, 



5. What are the causes of an abscess? Give the treatment. 



6. What are the causes of fistula and poll evil? Give the treatment. 



