
Sinus congestion that persists for more than 12 weeks often signals chronic rhinosinusitis rather than seasonal allergies, affecting millions of Americans with ongoing nasal blockage and discomfort. This condition manifests through a cluster of sinusitis symptoms such as facial pressure, thick nasal discharge, reduced sense of smell, and persistent blocked nose, distinguishing it from temporary allergic reactions that resolve with antihistamines. When typical over‑the‑counter sprays and home remedies fail after about 10 days, structural problems or underlying infections may be to blame.
Chronic congestion can significantly impact quality of life, sleep, and productivity, prompting many to seek ENT (ear, nose, and throat) evaluation. Knowing when to consider structural or infectious causes beyond allergies is a key step in effective diagnosis and treatment.