Mayo Clinic Health Manager
Get free personalized health guidance for you and your family.
Get Started
About our e-newsletters
- Free e-newsletters
- Mayo Clinic expertise
- We do not share your e-mail address
Housecall, our weekly general-interest e-newsletter, keeps you up to date on a wide variety of health topics with timely, reliable, practical information, recipes, blogs, questions and answers with Mayo Clinic experts and more. Our biweekly topic-specific e-newsletters also include blogs, questions and answers with Mayo Clinic experts, and other useful information that will help you manage your health.
Housecall Archives
Mayo Clinic Housecall
Stay up to date on the latest health information.
What you get
- Free weekly e-newsletter
- Mayo Clinic expertise
- Recipes, tools and other helpful information
- We do not share your e-mail address
Tests and diagnosis
By Mayo Clinic staffTo look for the cause of your symptoms, your doctor will feel for tenderness in your nose or throat. Your doctor may use a tool to hold your nose open and apply medication that constricts blood vessels in your nasal passages. This makes it easier to see inside your nasal passages. Your doctor will then shine a light into your nasal passages to look for inflammation or fluid. This visual inspection will also help rule out physical conditions that trigger sinusitis, such as nasal polyps or other abnormalities.
Your doctor may use several methods to help screen for chronic sinusitis:
- Nasal endoscopy. A thin, flexible tube (endoscope) with a fiber-optic light inserted through your nose allows your doctor to visually inspect the inside of your sinuses.
- Imaging studies. Images taken using computerized tomography (CT) or magnetic resonance imaging (MRI) can show details of your sinuses and nasal area. These may identify a deep inflammation or physical obstruction that's difficult to detect using an endoscope.
- Nasal and sinus cultures. Laboratory tests are generally unnecessary for diagnosing chronic sinusitis. However, in cases in which the condition fails to respond to treatment or is progressing, tissue cultures may help pinpoint the cause, such as identifying a bacterial pathogen.
- An allergy test. If your doctor suspects that the condition may be brought on by allergies, an allergy skin test may be recommended. A skin test is safe and quick and can help pinpoint the allergen that's responsible for your nasal flare-ups.
- Joint Task Force on Practice Parameters for Allergy and Immunology. The diagnosis and management of sinusitis: A practice parameter update. Journal of Allergy and Clinical Immunology. 2005; 116(6)(suppl):13-47.
- Hamilos D, et al. Clinical manifestations, pathophysiology, and diagnosis of chronic rhinosinusitis. http://www.uptodate.com/home/index.html. Accessed Sept. 24, 2008.
- Leung R, et al. The diagnosis and management of acute and chronic sinusitis. Primary Care Clinics. 2008;35:11-24.
- Hamilos D, et al. Management of chronic rhinosinusitis. http://www.uptodate.com/home/index.html. Accessed Sept. 24, 2008.
