What Is Nasal Congestion?
Nasal congestion, commonly called blocked or stuffy nose, refers to blockage of nasal passages caused by swelling of nasal mucous layer. Apart from nasal congestion, there are other causes of blocked nose.
Causes of Nasal Congestion
A cause of blocked nose may be suspected from symptoms, their duration, circumstances preceding blockage and effect of treatment trials. When the cause is not obvious, a doctor should be visited. Main causes include:
- Infections
- Allergies
- Non-allergic rhinitis: emotions, cigarette smoke, medications, irritant gases, hormones, pregnancy, drug addiction, spicy foods…
- Poisoning
