Meaning of the word "nasal congestion" in English

What does "nasal congestion" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

nasal congestion

US /ˈneɪ.zəl kənˈdʒes.tʃən/
UK /ˈneɪ.zəl kənˈdʒes.tʃən/

Noun

the blockage of the nasal passages, usually due to swollen membranes lining the nose, often caused by a cold, flu, or allergies

Example:
I'm suffering from severe nasal congestion and can barely breathe.
Over-the-counter medications can help relieve nasal congestion.