[Contribution of anamnesis and clinical examination in the assessment of chronic urticaria].

Chronic urticaria is defined as an eruption of oedematous and pruriginous papules, localized or widespread, evolving for more than 6 weeks. Cutaneous lesions occurs daily or recurs with remissions of a few days at a few weeks. Diagnosing chronic urticaria is easy, but to find an etiology is much more tiresome. This is why a detailed anamnesis and a clinical examination are significant elements in the assessment of chronic urticaria. The analysis of the literature according to criteria's of the National Agency of Accreditation and Evaluation in Health shows that the anamnesis and the clinical examination are sufficient to carry a diagnosis in the majority of physical urticaria. However, they bring elements to suspect an urticarial vasculitis, a systemic disease or another etiology, allowing orientation of complementary examinations. The anamnesis permits to detect worsening factors, in particular drugs and/or food, their suppression leading to an improvement of symptomatology.