Allergic rhinitis is one of the most common chronic diseases in childhood. The International Study of Asthma and Allergies in Childhood reported an average prevalence rhinitis of 8.5% among 6-7-year-old children, and 14.6% for 13-14 year-old children1. The burden of allergic rhinitis to individual patients and the society is often underestimated, and there is a general lack of data on the risk factors and phenotypes of rhinitis in childhood and adolescence2.