204 THE VETERINARY DOCTOR. 
ounce of water. Baryta carbonica is valuable for hard tumors in the head, 
enlarged glands which threaten to form pus, or tubercles in the jaw; it aids 
in softening hard abscesses, and also removes scrofulous tumors without 
suppuration. Abscesses are very debilitating and need good treatment. 
ULCERS. 
Ulcers often follow bruises and other extended injuries, and take place 
especially when the system is unhealthy, but may result from inflamma- 
tion, They are a separation of dead tissue from surrounding parts, and 
are attended with a secretion of pus. If the ulcers appear on a mucous 
membrane, there will at first be seen a red point or two, with a few small 
vesicles on the surface of the part affected, a watery fluid exuding from 
beneath, and sometimes a thick, gray, slimy lymph. The ulcer grows 
larger as parts of the tissue come away, its edges becoming ragged and 
swollen. It may be deep, extending in different directions; round and 
shallow, with ragged edges, and spreading out; or sloughing, parts of the 
tissue flaking off. 
TREATMENT.—Have regard to the general health by insuring nourish- 
ing food, fresh air, good grooming and rest. Nearly always avoid the use 
of ointments. Plain cold water is the best external treatment. If the 
formation of pus is too long delayed, press around the sore lightly, and 
‘should this not avail, use a mild blister somewhat frequently. Should the 
-granulations be excessive in the healing, apply lunar ‘caustic or powdered 
burnt alum. If the injury results from chafing of the saddle or harness, 
follow the treatment given under Galls. For fever, give ten drops of 
aconite every three hours for a day or two. Méercurius is needed for 
spreading ulcers, corroding discharge, and rawness. Arsenicum is demanded 
for ulcers which result from a debilitated constitution, hard work, and 
poor fare; for deep, readily bleeding, inflamed, putrid, gangrenous, corrod- 
ing, mortifying and spreading ulcers; for those with thin pus of bad odor. 
Give five to ten drops three times daily. Asafcetida is desirable for bluish 
ulcers, turning black, with hard edges, and painful to the touch, the dose 
being three to five grains three times a day. Ten drops of sulphuric acid 
every four hours will be beneficial for ulcers with dark spots and discolored 
skin when the cause is some mechanical injury, bruise or pressure. 
FISTULA.—FISTULOUS WITHERS. 
In this disease matter forms from an inflammation caused by a badly- 
fitting collar or saddle, usually a side-saddle, or other injury. The matter 
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