I0 DISEASES OF THE DOMESTIC ANIMALS 



iodide. This is almost a specific; from 53 to 75 % of cases are 

 cured by its use according to different authorities. Two to .three 

 drams are given daily in drench and continued until coryza, lachry- 

 mation, bronchorrhea and anorexia ensue (iodism), when the drug 

 is given in daily doses of one dram for a period of three to six 

 weeks. The drug is expensive, however. Some animals who do 

 not show iodism are not curable by the iodide. If there is no im- 

 provement within four or five weeks of treatment with the iodide, 

 it is useless to persist in it. The drug should not be given to 

 milch cows nor to pregnant animals, as it is eliminated in the milk 

 and may induce abortion. Packing fistulous tracts with pure pow- 

 dered copper sulphate is efficient. A one per cent, solution of the 

 iodide may also be injected into the tissues and Lugol's solution or 

 tine, of iodine may be used externally on the lesion. The injection 

 of tuberculin has also been shown to lead to great improvement. 



Alopecia— Baldness. 



This occurs in horses, sheep, dogs and other animals. Several 

 forms may be differentiated. That appearing as the result of gen- 

 eral debility or symptomatic alopecia; that which is inherited, or 

 congenital; as a form of eczema with much dandruff or scaling, 

 alopecia pityrodes ; and the form in which isolated patches of bald- 

 ness appear, alopecia areata. 



Treatment. — The treatment consists in combating debility and 

 anemia by good feeding, and the use of iron, arsenic and vegetable 

 bitters in the symptomatic form with general loss of hair. Local 

 stimulation of the skin with a variety of remedies is useful. Thus 

 1$ : Tincturse cantharidis, % i ; linimenti saponis, ad § viii, may be 

 employed externally. Pilocarpine hydrochlorate, 5 ss ; vaseline, 

 % ss ; and lanolin, ad ^ ii, makes a serviceable application in limited 

 areas of baldness. The application of strong water of ammonia ; of 

 chrysarobin (gr. xx-xxx to the ounce of ointment) ; and many 

 other substances are remedial, but in symptomatic baldness the hair 

 often returns naturally in a few weeks. 



Digitized by Microsoft® 



