Allergic rhinitis: diagnosis and management.

Allergic rhinitis affects up to 20 per cent of the pediatric population and occurs in children of all ages. Secondary infection, dental malocclusion and a variety of other sequelae may complicate the primary disorder. The diagnosis of allergic rhinitis is based on historic features, physical findings and selected laboratory investigations. Treatment may involve antigen avoidance programs and immunotherapy. However, pharmacotherapy with antihistamines, sympathomimetics and, in severe cases, corticosteroids, is most frequently used.