The general characteristics of acute urticaria
attacks and the factors predictive of progression to chronic urticaria.
Acute urticaria usually occurs secondarily to ingestion of food or medicine and has a self-limiting clinical course, while chronic urticaria may cause disruption of the quality of life because of persistent pruritus and chronic skin lesions.
Acute urticaria is characterized by superficial swelling, erythema and pruritus on any area of the skin.
Almost any medicine can also cause acute urticaria, but painkillers, especially aspirin and medicines like ibuprofen, antibiotics and vaccinations are most likely to be responsible.
Foods do not usually cause acute urticaria, although occasionally nuts, fish, tomatoes, vegetables and berries may be responsible.
Food allergy was most common (54%), followed by angioedema (29%), acute urticaria
(45%), and anaphylaxis (7%).
Aspirin and NSAIDs may also cause acute urticaria
, angioedema, and/or anaphylactoid reactions in patients without asthma or nasal polyps.
Traditional allergies to foods or medications and viral illness are frequent causes of acute urticaria.
Many patients with acute urticaria seek care from their primary care physicians who, in many instances, can determine the probable cause by reviewing the patient's history and performing a physical examination and a few simple laboratory tests.
However, the drug maker did suggest that many physicians would favor a nonsedating antihistamine, such as Claritin, for first-line treatment even for acute urticaria
Background and Design: To determine the clinical and etiological features of inpatients with acute urticaria and angioedema and to assess the need for laboratory tests.
Material and Methods: We recruited 105 patients with acute urticaria and angioedema who were admitted to our inpatient unit.