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Sinusitis

Sinusitis is inflammation or infection of the sinus lining that causes congestion, facial pressure, and thick drainage, sometimes lasting weeks or returning again and again. Here's how it develops.

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Comparison of healthy vs. inflamed sinuses. Anatomical diagram showing the frontal, ethmoid, and maxillary sinuses in a normal state (left) versus sinusitis (right), with visible inflammation, obstructed sinus openings, and fluid buildup.

Comparison of healthy vs. inflamed sinuses. Anatomical diagram showing the frontal, ethmoid, and maxillary sinuses in a normal state (left) versus sinusitis (right), with visible inflammation, obstructed sinus openings, and fluid buildup.

How It Happens

Step by Step

A quick walkthrough of what's actually going on, so the treatment makes sense too.

  1. 1
    Blockage. Swelling from a cold, allergies, or a structural issue like a deviated septum blocks the sinuses' normal drainage pathway.
  2. 2
    Mucus gets trapped. With nowhere to drain, mucus builds up inside the sinus cavities.
  3. 3
    Inflammation or infection sets in. Trapped mucus creates an environment where inflammation, and sometimes bacteria or fungus, can take hold.
  4. 4
    Pressure builds. Swelling and trapped fluid create the facial pressure, pain, and congestion associated with sinusitis.

Signs to Watch For

Common Symptoms

Acute vs. Chronic

Acute sinusitis usually clears up within a few weeks, often alongside a cold. Chronic sinusitis is diagnosed when symptoms last 12 weeks or longer, or when infections keep coming back despite treatment.

Treatment Options

Medication is usually the first step. For chronic or recurring cases, minimally invasive options like Balloon Sinus Dilation or Functional Endoscopic Sinus Surgery can open blocked sinus passages for lasting relief.

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