Chronic rhinosinusitis is a long-term inflammation of the nasal and paranasal sinus mucosa lasting twelve weeks or more, characterized by at least two of the following symptoms: nasal congestion, facial pressure or pain, reduced sense of smell, and/or nasal discharge. It’s estimated that about 1 in 10 adults worldwide are affected, though prevalence may be higher in some regions due to genetic, cultural, and environmental factors that contribute to persistent inflammation of the nasal and sinus lining.
Contributing factors can include allergic or environmental irritants—from household allergens to air pollution—structural issues such as a deviated nasal septum, enlarged turbinates, or…
