Think it’s just allergies or a never-ending cold? It might be something far more serious—and far more common. Dr. Yvonne Chan, Professor University of Toronto – Rhinologist (nasal expert) in the Department of Head & Neck Surgery at St. Michael’s Hospital joins Shane Hewitt to shine a light on chronic rhinosinusitis, a condition affecting millions of Canadians who often don’t even realize they have it. Even more shocking? New research shows many doctors may be misdiagnosing and mistreating it.

Originally aired on2025-07-21