Urticaria pigmentosa paulosa, or Powes-Putto urticaria, is a chronic skin disease characterized by the appearance of persistent papulovesicular papules and dischromic macules. This condition can occur in both adults and children, mainly in people between 30 and 50 years of age. The etiological factor is genetic predisposition
Hives are a common skin condition characterized by the sudden appearance of itchy and swollen patches on the skin. The most common type of urticaria is hypersensitive eczematitis. Due to its high incidence rate, especially in economically developed countries, urticaria is a serious medical problem. The exact reasons for the development of this disease are not completely clear.