5o6 Veterinary Medicine. 



ent forms does not differ materially from that of eczema rubrum, 

 being first dietetic and hygienic, then soothing, and finally stimu- 

 lating. 



CHRONIC ECZEMA IN THE DOG. 



Follows acute. Same general causes. Symptoms : skin thickens with 

 papules, vesicles or pustules, scurf, crusts, depilation, surface glossy, 

 abraded, scratched, raw, rough, foetid, itching, emaciation, exhaustion. 

 Chronic eczema of the back. Fat, old, gluttons. Symptoms : circum- 

 scribed patches on back, loins, quarters, tail, intense itching, skin thick- 

 ened, cracked, raw, encrusted, black, folded, rigid, foetid, hair broken, 

 erect, shedding. Very inveterate. Chronic eczema of elbow and hock. 

 Causes : friction on summits of prominent bones, filth, infection, predis- 

 position. Symptoms : red, thickened, bare, indurated, calloused skin, 

 cracks, sores, discharge. Inveterate. Chronic dry eczema of head, ears, 

 neck and limbs. Circumscribed area, slow progress, thick, rigid, folded 

 skin, hairless, dry, scaly, moderate itching. Treatment : Fresh eruptioik 

 like acute form. For old chronic form, stimulating astringents, silver, 

 mercury, copper, boric acid, tannic acid, iodoform : for dry and scaly, oint- 

 ments of oil of cade, tar, green soap, zinc, cresol, lysol, chloronaphtho- 

 leum, sulphur, sulphur iodide, ichthyol, salicylic acid, chrysarobin, naph- 

 thalin, naphthol, resorcin. 



While acute eczema may recover permanently under hygienic 

 measures alone, yet any case is subject to relapse and the new 

 eruptions may succeed each other .so persistently that the affec- 

 tion becomes essentially chronic. lyike the acute, chronic eczema 

 may be general or local and be named accordingly. 



The same general causes as produce acute eczema are oper- 

 ative in maintaining the disease indefinitely. Faults in diet, 

 overfeeding, unhealthy kennels, foul air and surroundings, 

 hot weather, licking and scratching are among the common 

 causes. 



Symptoms. Under the continued inflammation the skin be- 

 comes thick (on the back it may be double or treble its nor- 

 mal thickness), it has a general angry congested appearance, 

 papules, vesicles and pustules coexist or succeed each other and 

 as these dry up; scales and crusts accumulate. The hair drops 

 off over extensive patches, leaving a somewhat shining skin. 

 What hair remains is largely twisted or broken by rubbing and 



