Abstract
We report three cases of pediatric chronic sinusitis, two involving chronic cough and one otitis media with effusion, for which medical interventions were not effective. X-ray and MRI were used to diagnose these cases as chronic sinusitis. Symptoms of chronic sinusitis disappeared as the result of several maxillary antral irrigation treatments administered via the natural ostium using a Killian-Kubo cannula. This therapeutic method is not invasive for children, making iterative operations possible. We recommend that this no-longer-utilized method undergo re-evaluation as a future treatment for childhood sinusitis.