Acute urticaria is a common condition, caused by multiple factors, characterized by a sudden eruption, consisting of erythemato-oedematous papules and boards, fugitive and mobile, itchy, persisting less than 6 weeks. Urticaria is the most common skin condition treated in hospital emergency services in the world.
It is estimated that 15-25% of the population will, at some point, at least one episode of hives.
Hives with a duration of 6 weeks of evolution.
Hives with a duration of evolution over 6 weeks.
particular form of hives triggered by physical agents (cold, heat, UV, water, pressure, vibration, exercise, etc.).
particular form of urticaria in which the lesions are papules and tangible fixed purple, persisting over 24 hours.
Urticaria appears as a cutaneous contact allergic reaction to a particular substance.
Angioedema (Quincke edema sin.)
edema affecting the deep dermis and subcutaneous tissue.
worst manifestation of an allergic reaction, characterized clinically by urticaria, angioedema, respiratory failure and cardio-vascular.
erythemato-oedematous appearance of lesions at the skin friction with a hard object.
particular sensation, skin organ specific, urgent need to determine the scratching.
seroalbuminos abundant accumulation of fluid in intercellular tissue due to various causes.
reddening of the skin, diffuse or localized, produced by congestion of capillaries and that disappears the moment due to compression.