CHAP. II.] THE SETON, HOW APPLIED. 827 



the opening be dressed the first time, and as long 

 as it maybe found necessary to keep open the wound, 

 with any ointment hereafter mentioned, on which 

 has been strewed sulphate of copper, powdered. 

 Should the lips adhere together, or appear much 

 diseased, wash with muriate of ammonia, taking 

 care it does not run upon the sound parts, nor into 

 the cavity. In either case, wash off the dead parts 

 with warm water, before each new dressing is laid, 

 sponge it well and dry, after inserting the probe on 

 every side into the fistulous sinuses, and continue 

 this mode of treatment until the parts assume a 

 healthy appearance. 



The seton should never be neglected in bad cases 

 of either description, but be introduced at the 

 lowest or most depending side of the abscess, after 

 being wetted with the following 



Irritating Mixture. 



Spirits of wine, 2 ounces, 

 Corrosive sublimate, 1 scruple ; 

 Mix and saturate the tape therewith daily. This 

 will keep open the orifice until the offensive matter 

 has run off, and is succeeded by the more healthy 

 issue of a thicker consistency, and nearly white. 

 On this appearance the seton is to be withdrawn, 

 and the parts dressed with the digestive ointment, 

 the animal physicked once or twice with a moderate 

 purging ball of six or seven drachms of aloes for a 

 heavy animal, and the cure will complete itself with 

 the usual dressings, viz. 



