g 2 DISEASES OF THE DOMESTIC ANIMALS 



3ii, amyli, §i.) Ointments containing tannic acid (i-io) or creolin 

 with zinc ointment (1-20) may also be used — the latter with much 

 itching. The admixture of liquor picis liquidae or oil of cade to 

 zinc ointment (3i to gi) is a good combination in subacute eczema. 



In the chronic form, tar or some of its substitutes are of most 

 worth. Thus, unguentum picis liquidae, or oil of cade and sweet 

 oil (oss-ii in §i of sweet oil), or salicylic acid (3ss-gi) in olive oil, 

 are found to be good applications. Friedberger speaks highly of 

 creolin ointment (1-10-20) or creolin and green soap, each |iii, 

 alcohol, §iss. 



Eczema is chiefly due to local irritation, as to fleas, dirt, 

 friction, etc., but the general condition may predispose. Thus con- 

 stipation should be relieved, as by the daily use of aromatic extract 

 of cascara sagrada (3ss to 3i), and the occasional use of liver and 

 dog biscuit. Exercise is often of importance. Of internal remedies, 

 Fowler's solution of arsenic may be remedial in chronic scaly eczema 

 (TT],ii-v in drinking water twice daily every other fortnight). In 

 overfed animals a good purge (2-3 comp. cathartic pills) and a 

 •certain amount of starving will be found of advantage, while a diet 

 of bread and soup or milk is indicated in acute cases. Oatmeal is 

 thought to favor the disease. 



In Horses. (Grease, Grapes). — In the horse, eczema rep- 

 resents practically all forms of skin disease seen in this animal, 

 except the parasitic, and is — according to the classification of Fried- 

 berger — seen in the following forms and regions. A form seen in 

 hot weather and known variously as herpes, lichen, summer or 

 saddle mange and heat pimples. This occurs under the harness, 

 where sweating is most profuse, as papules and vesicles. These 

 result in scabby pimples and the hair sticks together and falls, leav- 

 ing scaly, bare patches. 



Then there is a form of squamous or scaly eczema, thought by 

 some erroneously to be akin to psoriasis and pityriasis of man, 

 which attacks the head, neck, shoulders, elbows, etc., of animals. 



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