54 TERMINATIONS OF INFLAMMATION. 



ought to have regular exercise, aud great attention must be paid 

 to cleanliness. 



M. Indolent ulcer, found usually about the coronet of old 

 horses. Its edges are thick, prominent, comparatively insensible, 

 smooth, sliining, firm, incompressible, and without any appear- 

 ance of cicatrix ; the surrounding parts are swollen, hard, in- 

 compressible, and if the skin be white, discoloration will be 

 seen from congestion of the vessels ; the surface of the ulcer 

 is nearly devoid of granulations, smooth, glossy, and whitish, 

 grey, or brown in colour; the discharge is thin, watery, and 

 scanty. The treatment of this ulcer is by blister, succeeded by 

 gently stimulating dressings, but bandages do more harm than 

 good. The constitutional treatment must depend upon the 

 condition of the animal, but generally a purgative is useful. 



4:th. Inflamed ulcer. The edges are red or purple, swollen, 

 hot, tense, tender, and painful ; the sore presents no granula- 

 tions, but has a raw, pulpy, foul, and even livid appearance ; 

 the discharge is offensive, profuse, mingled with blood and 

 ulcerative debris; the pain is great, and there is always some 

 attendant fever. This ulcer may be caused by the presence of 

 some foreign body in the part, which must be removed ; it may 

 be a piece of dead tissue, skin, ligament, or bone, as when this 

 ulcer is produced by a tread. Whatever it be, the first step in 

 the treatment must be its removal. This being done, the in- 

 flamed ulcer must be converted into a healthy one by means 

 calculated to subdue excessive irritability. The most useful 

 local applications for this purpose are warm fomentations and 

 poultices, combined with opiates ; the general treatment to con- 

 sist of a purgative, succeeded by febrifuges, and the diet to be 

 light, and easy of digestion. 



5ih. The phagedenic, gangrenous, or sloughing ulcer, which 

 may arise from constitutional debility or from local causes, as 

 frost-bites, is that in which the edges are very irregular, and of 

 a dark purple appearance, extending a considerable way into the 

 surrounding parts ; they are often inverted, and exceedingly 

 painful. The surface of the ulcer is uneven, of a dark, livid 

 colour, presenting a very irritable appearance and much sur- 

 rounding swelling. The discharge is thin, ichorous, and mixed 

 with blood. The ulcer enlarges with great rapidity, the de- 

 structive process being carried on both by ulceration and 



