prurigo(n = noun.state) - chronic inflammatory disease of the skin characterized by blister capped papules and intense itching;
is a kind of disease of the skin, skin disease, skin disorder

   A papular disease of the skin, of which intense itching is the chief symptom, the eruption scarcely differing from the healthy cuticle in color. [1913 Webster]

prurigo, n. a skin disease marked by severe itching.

Derivative:
pruriginous adj.

Etymology:
L prurigo -ginis f. prurire to itch