Vesicular Irruption in Pigs. 501 



maculae in the form of blood extravasations, punctiform or in 

 extended patches are constant phenomena. In some cases this 

 is complicated by a vesicular eruption, or by a seborrhoea and 

 by a dense accumulation of black crust on the surface. 



Impetigo of Pigs. Benion and Cadeac describe this as a 

 sporadic affection of young pigs especially, which has been at- 

 tributed to cold stormy weather, lack of shelter, filthy pens, 

 spoiled food and insufficient nourishment. 



Symptoms. The skin of the eyelids and other parts of the 

 body presents itchy, red, hot and swollen patches, which grad- 

 ually pass into a pustular eruption. The pustules no larger 

 than a millet seed, burst in forty-eight hours, and discharge a 

 yellowish or purulent liquid which concretes around the eye- 

 lashes or bristles, and glue the eyelids together. The crusts 

 may increase so as to cover the affected part of the skin by a 

 dense scabby covering which is firmly adherent and when de- 

 tached leaves a bleeding surface. It may extend to the differ- 

 ent mucosae of the eye, nose or mouth. The disease runs a 

 course of twenty- days or less being retarded by the extremes 

 of temperature. During the heats of summer the attendant 

 pruritus is very great and annoying. During convalescence the 

 scabs and crusts gradually detach themselves and drop off leav- 

 ing the healthy skin covered at first by a somewhat delicate 

 epidermis. 



Treatment is confined to cleanliness, soapy washes, emollient 

 ointments and astringent lotions (lead acetate, sulphuric or hydro- 

 chloric acid) but no premature detachment of scabs is per- 

 missible. Saline laxatives and diuretics are often called for. 



VESICUI^AR IRRUPTION IN PIGS. PITCHY AFFEC- 

 TION. SEBORRHCEA. 



This also affects the young and is characterized by the succes- 

 sive appearance of vesicles, pustules and scabs or crusts. Fried- 

 berger and Frohner associate it with debility from youth, disease 

 or neglect, from articular rheumatism, rachitism, tog cholera, 

 etc. , but also as a result of lying on manure, and the accumula- 

 tion of sebaceous matter and filth of all kinds on the skin. 



