Allergic diseases are autoimmune diseases that involve multi-organ systems producing a variety of clinical manifestations; concurrently, there is an intrinsic and inseparable link between multiple systems and clinical manifestations, producing a variety of manifestations among different age-groups and populations. Focusing on allergic diseases that are associated with the respiratory airway in children is relatively complicated due to the dynamic changes observed with respect to their body structures and immune systems. Allergic rhinitis, allergic asthma, and otitis media with effusion are three examples of allergic respiratory diseases in children that affect the same airway at different anatomical regions, and the correlation between them is receiving greater attention. Whether the upper, lower, and lateral airways could ever truly be in concurrence with each other is worth an in-depth discussion, and thus, we put forward some minor thoughts and suggestions based on the available clinical research and literature.