URTICÁRIA – WHAT ARE THE TYPES OF URTICARIA
Urticaria is classified according to the duration of symptoms as:
- ACUTE URTICARIA – flares lasting less that 6 weeks;
- CHRONIC URTICARIA – flares lasting more than 6 weeks, and occurring most of the days or every day, and sometimes lasting for years.
J Allergy Clin Immunol. 2014 May;133(5):1270-7