The diseases and disorders of The diseases and disorders of the ox, with some account of the diseases of the sheep diseasesdisorderox00gres Year: 1889 DISEASES OF THE OX AND SHEEP. 589 URTICARIA OR 'NETTLE-RASH.' This skin affection coraes on suddenly and disappears sud- denly. It shows itself by a number of elevations of the skin about two and a half inches in diameter on the average. The itching produced is great, the temperature of the part affected is slightly increased ; but there is little or no tenderness or fever. Cattle that have been badly kept in winter and have quickly become ple
The diseases and disorders of The diseases and disorders of the ox, with some account of the diseases of the sheep diseasesdisorderox00gres Year: 1889 DISEASES OF THE OX AND SHEEP. 589 URTICARIA OR 'NETTLE-RASH.' This skin affection coraes on suddenly and disappears sud- denly. It shows itself by a number of elevations of the skin about two and a half inches in diameter on the average. The itching produced is great, the temperature of the part affected is slightly increased ; but there is little or no tenderness or fever. Cattle that have been badly kept in winter and have quickly become plethoric are most liable to be attacked with nettle-rash in the hot summer-time following. The hair is shed after a few days, producing many bald patches, and the eruption may disappear after about twelve days. A fairly strong saline cathartic should be given, and a lotion containing glycerine, carbonate of sodium and laudanum may be useful for applying to the affected parts several times daily. Sulphur and bicar- bonate of potassium may be given in the food. Cleanliness and comfort are essential. PRURIGO. Prurigo is the disease sometimes known as ' Spring-lice.' It is often met with among cattle, especially during the early parts of the year. In cases of this malady the coat stares, the papillae of the dermis are inflamed, pimples appear on the body and legs, crusts are formed, and then thrown off together with the hair. The treatment is the same as that for urticaria. ECTHYMA. Ecthyma is rare among cattle. A number of large prominent and isolated well-defined pustules appear. They burst, andjpro- FiG. 70.—Ecthyma. duce a dark-coloured scab, which, on being detached, leaves a brown stain. The pustules may often be seen on those parts of
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