Nasal congestion typically clears after a few days, but congestion that lasts for a week or more may be a sign of an infection. Left untreated, nasal congestion may cause sinusitis, nasal polyps or middle ear …

Dec 18, 2025 · Infections — such as colds, flu or sinusitis — and allergies often cause stuffy and runny noses. Irritants in the air, such as tobacco smoke, perfume, dust and car exhaust, also can cause …

Dec 18, 2024 · This kind of nasal congestion and sinus pressure have many causes: colds, the flu, sinus infections, and allergies, to name a few. Whatever your triggers are, the symptoms can get to you.

Causes of nasal congestion include the common cold, influenza ("the flu"), sinus infection, hay fever or other allergies, COVID-19, using over-the-counter (OTC) nasal sprays or drops for more than 3 days, …

Jul 11, 2025 · Nasal congestion rarely causes major health problems and is most often caused by the common cold or a sinus infection. Symptoms usually improve right away with proper treatment.

Feb 9, 2024 · Here, we delve into the five most common non-viral causes of nasal congestion: allergic reactions, sinus infections, deviated septum, nasal polyps, and enlarged turbinates. Allergic reactions …

Most nasal congestion and discharge are caused by an upper respiratory infection or allergies. In children, doctors consider the possibility of a foreign object in the nose.

The problem may also include nasal discharge or runny nose. If excess mucus runs down the back of your throat (postnasal drip), it may cause a cough or sore throat.

Jul 27, 2023 · The most common causes of nasal congestion are: Infections: the common cold and other respiratory tract infections, including influenza (flu) and sinusitis. Allergies, including hay fever. …

Discover common causes of nasal congestion and explore effective remedies and tips to breathe easier, feel better, and improve your daily comfort.