What is sinus infection?

With a sinus infection (also called sinus infection or sinusitis), the mucous membrane in one or more of the hollow spaces behind your nose, in your upper jaw or in your forehead (the sinuses) is inflamed. This mucous membrane is in contact with the mucous membrane in your nose by means of small channels.

Usually, a cold precedes sinus infection. The nasal mucosa is swollen because of the cold. The swelling spreads through the drainage channels to the sinuses. The mucous membranes can therefore not get rid of their waste products. The defense of the mucous membranes drops, viruses & bacteria can seem and inflammation originates.

What are the symptoms of sinus inflammation?

If you have sinus infection, you will have:

  • Pain in your forehead, above jaw or back your eyes
  • A stuffy nose, sometimes with yellow-green or bloody mucus
  • Coughing, if the mucus gets in your throat
  • Sometimes painful molars, for example when you chew

The pain is especially present in the morning and gets worse when you bend over. You can also get a fever.

How does sinus infection develop?

As mentioned, in many cases a cold is the cause of sinus inflammation. Sometimes an allergy can cause complaints that resemble a sinus infection. Symptoms that point in this direction are: sneezing, seasonal complaints and a lot of clear mucus.

Does sinus infection go away on its own?

Yes, sinus inflammation usually clears up on its own. The complaints usually disappear within a week.

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