426 



phide of potassium, or of byposulpliite of soda, 3 drams to the quart of 

 water. In these cases the auirnal may take a course of sulphur (1 

 ounce dail3'), bisulphite of soda (J ouuce daily), or of arsenic (5 grains 

 daily) mixed with 1 dram bicarbonate of soda 



INFLAMMATION WITH PUSTULES. 



In this affection the individual elevations on the inflamed skin show in 

 the center a small sack of white, creamy pus, in place of the clear liquid 

 of a blister. Tbey vary in size from a millet seed to a hazel unt. The 

 pustules of glanders (farcy buds) are to be distinguished by the watery 

 coutents and the cord-like swelling, extending from the pustules along 

 the line of the veins, and those of boils by the inflammation and 

 sloughing out of a core of the true skin. The hair on the pustule stands 

 erect, and is often shed with the scab which results. When itching is 

 severe the parts become excoriated by rubbing, and, as in the other 

 forms of skin disease, the character of the eruption may become indis- 

 tinct. Old horses suffer mainly at the root of the mane and tail, and 

 about the heels, and suckling foals around the mouth, on the face, inside 

 the thighs, and under the tail. 



Pustules like eczema are especially liable to result from unwholesome 

 food and indigestion, from a sudden change of food, above all from dry 

 to green food. In foals it may result from overheating of the mare and 

 allowing the first milk after she returns, or by milk rendered unwhole- 

 some by faulty feeding of the dam. If a foal is brought up by hand 

 the souring and other decompositions in the milk derange the digestion 

 and cause such eruption. Vetches and other plants affected with 

 honeydew and buckwheat have been the cause of these eruptions on 

 white portions of the skin. Disorders of the kidneys or liver are com- 

 mon causes of this affection. 



Treatment. — Apply soothing ointments, such as benzoated oxide of 

 zinc, or vaseline with 1 dram oxide of zinc in each ounce. Or a wash 

 of 1 dram sugar of lead or 2 drams hyposulphite of soda in a quart of 

 water may be freely applied. If the skin is already abraded and 

 scabby, smear thickly with vaseline for some hours, then wash with 

 soapsuds and apply the above dressings. When the excoriations are 

 indolent they may be painted with a solution of lunar caustic, 2 grains 

 to 1 ounce of distilled water. Internally counteract costiveness and 

 remove intestinal irritants by the same means as in eczema, and follow 

 this with one-half ounce doses daily of hyposulphite of soda, and one- 

 half ouuce doses of gentian. Inveterate cases may often be benefited 

 by a course of sulphur, bisulphite of soda, or arsenic. In all the great- 

 est care must be taken with regard to food, feeding, watering, cleanli- 

 ness, and work. In wet and cold seasons predisposed animals should, 

 as far as possible, be protected from wet, mud, snow, and melted suow, 

 above all from that which has been melted by salt. 



