Allergic Rhinitis and its Impact on Asthma (ARIA) 2008*

Allergic rhinitis is a symptomatic disorder of the nose induced after allergen exposure by an immunoglobulin E (IgE)-mediated inflammation of the membranes lining the nose (1). It was defined in 1929 (2): ‘The three cardinal symptoms in nasal reactions occurring in allergy are sneezing, nasal obstruction and mucous discharge’. Allergic rhinitis is a global health problem that causes major illness and disability worldwide. Patients from all...