The St. Louis Sinus Center is Recognized
As a National Center of Excellence
Do You Have Sinusitis?

Diagnosing Sinusitis

Sinusitis is generally classified as:

Acute Sinusitis

  • Symptoms lasting less than 10 days – generally considered viral and antibiotics are not needed
  • Symptoms lasting more than 10 days – generally considered bacterial and may require an antibiotic

Recurrent Sinusitis

  • In the last year, symptoms lasting 10 days or longer on 3-4 separate occasions.

Chronic Sinusitis

  • Symptoms lasting 12 or more weeks.

Symptoms alone are not a reliable way to diagnose sinusitis. Our practice takes a comprehensive approach to diagnosis. This includes:

  • Compiling an in depth medical history, including previous treatments methods
  • Conducting a nasal endoscopy, which evaluates the status of nasal cavity.
  • Performing a MiniCAT Instant CT Scanner scan to look at the degree of infection.
  • Allergy testing.

Once we know the answer to all three of these, we can then formulate a treatment plan right for you.


Learn more about medical treatments for sinusitis ›