Is it harmful to breathe through the mouth in the long term if my nose is always blocked?

Doctor's Answer

We are meant to breathe through the nose. The nose and sinuses allows us to:

  • Warm and humidify the air that we breathe in
  • Filter the air from dirt and bacteria
  • Smell and appreciate flavours from food and drinks
  • Shape the quality of our voice

If you breathe through your mouth, you bypass the above-mentioned function. Hence, you may be more likely to develop problems such as:

There are many potential reasons for a blocked nose. However, the top 3 causes seen in my practice are:

  1. Rhinitis ("Sensitive nose")
  2. Deviated nasal septum
  3. Sinusitis (infection of the sinuses)

If you are suffering from persistent and troublesome blocked nose, I would highly recommend a visit to an ENT Specialist.

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