Office-based management of allergic rhinitis in adults.

Allergic rhinitis (AR), the most common form of rhinitis, affects 10% to 30% of adults. However, the prevalence of AR actually may be underestimated. Rhinitis is caused by allergic, nonallergic, infectious, hormonal, occupational, and other factors. Proper management of AR requires that the correct diagnosis be made; the clinical history and physical examination are key. Controlled studies support the utility of several available treatments that produce fewer symptoms, improve quality of life, and prevent comorbidities.