Test Your Knowledge

Rhinosinusitis – more commonly known as sinusitis – is an inflammation of the mucous membranes lining the paranasal sinuses, four pairs of cavities that connect the nose to the throat. A cold or allergy usually creates the inflammation and congestion that prevents drainage of the warm, moist, mucus-filled sinus cavity. This creates a perfect breeding ground for viral, bacterial or fungal infections.

Rhinosinusitis is either acute or chronic:

• Acute rhinosinusitis. Lasts for just a few weeks and usually needs either no treatment or a course of antibiotics.
  
  
• Chronic rhinosinusitis. Lasts longer and can be more difficult to treat. However, treatment is essential, as long-term bouts of rhinosinusitis can develop into dangerous medical conditions. Chronic rhinosinusitis is a major health problem in the United States, afflicting more than 33 million Americans annually, according to the U.S. Centers for Disease Control and Prevention. 

In addition, rhinosinusitis is either infectious or noninfectious:

• Infectious rhinosinusitis usually stems from a viral infection. Less frequently, it is the result of bacterial growth.
  
  
• Noninfectious rhinosinusitis is usually the result of allergies or another nonviral irritant.