[Allergic rhinitis in childhood].

Prevalence of allergic rhinitis has increased in the past years. The determination of the aeroallergens involved is important. Children with persistent rhinitis must be evaluated for asthma. Early treatment of allergic rhinitis may avoid asthma onset. The management of allergic rhinitis must include allergen avoidance, pharmacological treatment and immunotherapy. Sublingual swallow immunotherapy is a safe and effective method of treatment.