Diseases of the Skin, 235 



Treatment. — Open the bowels by aperients ; febrifuges, 

 fomentations, and even continued poultices may be re- 

 quired, with ointments of lead, zinc, creosote, iodine, 

 &c. 



Herpes. — Two forms are common among horses. 

 Herpes phlyctenodes consists of erythema attended with 

 bladders or vesicles larger than those seen in eczema, 

 which locate themselves on the face and lips, also on the 

 coronet or ridge above the hoof, and causing irritation. 

 The hairs become erect, and are held by the growth of a 

 scab, and both falling off together, leave raw, irritable 

 surfaces, which generally heal readily, but are liable to 

 ulceration. 



Herpes eircinatus, or circular ringworm, known also as 

 vesicular or false ringworm, creep- 

 ing circle, &c, is a benignant 

 form of vesicular erythema, in 

 which the bladders agglomerate 

 in a constantly widening circle, 

 and at the end of a week or ten 

 days decline, throwing off brown- 

 ish scales, with fading redness of 

 the skin. 



Treatment— Astringent lotion, Her P es eircinatus. 



No. 1, with 1 oz. of laudanum. 

 Febrifuges when needed for febrile excitement. 



Impetigo, or Pustular Inflammation of the Skin. — It 

 is a form of erythema, in which the watery vesicles of the 

 preceding kinds are replaced by small pustules beneath 

 the epidermis or scarfskin. One form attacks the face 

 and lips where the skin is thin, the pustules being speedily 

 converted into yellow crusts or scales, beneath which the 

 skin is thickened and inflamed. 



Treatment as for the preceding. 



Pustular Erysipelas — Impetigo erysipelatodes, or 

 Grease, affects the skin of the heels, pastern, and fetlock 

 joints at their back parts. The hind legs are most com- 

 monly affected. The primary inflammation gives rise to 

 considerable swelling and lameness, and shortly an 

 exudation of lymph takes place, followed at a later stage 



