When the blood vessels in the nasal cavity get inflamed, it results in a blocked nose. The common causes include allergies, hay fever, sinusitis, respiratory tract infection, nasal polyps, and environmental irritants.
Nasal Congestion - Causes and Ways to Relieve It
Nasal congestion is a very common symptom seen and can be associated with various medical conditions, from the common cold to the side effects of medications.
