This disease is distinguished by an eruption of slightly raised papules, which in the case of a horse can be felt more easily than seen. Considerable itching attends the eruption, and as a result of the scratching or biting the irritation rapidly increases; the tops of some of the pimples are frequently rubbed oft", and a blood-coloured scab is formed. In severe attacks the disease is complicated with the secondary consequences produced by scratching. It is sometimes difficult to distinguish between prurigo and some stages of eczema. Prurigo generally arises from debility, clue to insufficient food, hard work, and absence of proper sanitary precautions. It may be looked upon as one of the consequences of bad stable management.

The treatment consequently will consist chiefly in liberal feeding, while at the same time the bowels should be carefully regulated in their action by the occasional administration of a dose of laxative medicine, of which sulphate of magnesia is perhaps the most to be preferred. Vegetable and iron tonics, or both combined, may be necessary where great debility exists. Some cases yield more readily to a run at grass and a course of alterative medicine. As external applications, a lotion of vinegar and water, or glycerine with a solution of the acetate of lead, will be found to allay the irritation.