Health Tip: What's Behind Nasal Congestion

(HealthDay News) -- Nasal congestion, commonly called a stuffy nose, occurs when the tissues that line the inside of the nose become swollen.

The U.S. National Library of Medicine says common causes of nasal congestion include:

  • Having the common cold or flu.
  • Having a sinus infection.
  • Having allergies.
  • Using nasal sprays or drops for longer than three days.
  • Having nasal polyps.
  • Being pregnant.
  • Having a condition called vasomotor rhinitis.
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