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Allergic rhinoconjunctivitis and chronic urticaria are common histamine-driven diseases, exerting detrimental effects on cognitive functions, sleep, daily activities, and quality of life. Non-sedating second-generation H1-antihistamines are the first-line treatment of choice. Aim of the study was to define the role of bilastine among second-generation H1-antihistamines in the treatment of allergic rhinoconjunctivitis and urticaria in patients of different ages. An international Delphi study was carried out to assess consensus among experts from 17 European and extra-European countries on three main topics: 1) Burden of disease; 2) Current treatment options; 3) Specific characteristics of bilastine among second-generation antihistamines. Here, we present the results obtained for a selection of 15 out of 27 consensus statements, focused on disease burden, role of second-generation antihistamines and bilastine profile. The rate of concordance was ≥98% for 4 statements, ≥ 96% for 6, ≥ 94% for 3, and ≥90% for 2. The high degree of agreement obtained suggests a wide awareness of the burden of allergic rhinoconjunctivitis and chronic urticaria among experts from all over the world and reflects a broad consensus on the role of second-generation antihistamines in general and of bilastine in particular for their management.