why am i always congested

The most common reasons for always feeling congested include allergies (especially allergic rhinitis or hay fever), chronic sinus infections, nasal polyps, structural issues like a deviated septum, and exposure to irritants such as smoke or pollution. Allergies cause inflammation inside the nose, excess mucus production, and swelling that traps mucus, leading to persistent congestion. Chronic sinusitis and nasal polyps also cause long-term blockage. Some people have nonallergic rhinitis, where nasal congestion happens without a clear allergic cause. Other less common factors are hormonal changes, certain medications, and environmental triggers. Nasal congestion that lasts beyond typical cold or flu duration is usually due to one of these underlying chronic issues requiring diagnosis and treatment.