DISEASES OF THE SKIN AND EARS. 245 



commonly are the cause of it; for no animal can long re- 

 main healthy while thus infested. Surfeit, mange, and hide- 

 bound, and perhaps some other affections, are always aggra- 

 vated by them. . v 



TREATMENT. 



If the horse has no chronic or seated disease, vermin may 

 be destroyed by simply greasing the hair with the mercurial 

 salve, or the precipitate or sulphur ointment. Tobacco will 

 kill them, but it will come too near killing the horse also, to 

 be a desirable remedy. 



In connection with whatever ointment may be used, the 

 horse should be well dosed with sulphur and resin. Three 

 table-spoonfuls of sulphur and one of finely-pulverized resin 

 may be given in the feed every other day. 



A change from the stable to the pasture will be the best 

 medicine after this; but if this can not be afforded the horse, 

 let him have a diet abundant, wholesome, and relaxing. 



In all skin affections, where alteratives are needed, the 

 preparation mentioned in Section YII, of Chapter XXIV, 

 may be used with advantage. It will do as a substitute for 

 the sulphur and resin, in some cases, and still oftener, per- 

 haps, in connection with them. 



