Chronic inflammation and infection off the sinuses can lead to chronic sinusitis, a condition in which patient's experience a variety of chronic symptoms which include nasal congestion, nasal obstruction, facial pain and pressure, loss of taste and smell, tooth pain, lethargy or tiredness. Although physicians do not understand all the causes of chronic sinusitis, inhalant allergies, nasal polyps, and granulomatous diseases are some of the causes thought to result in chronic sinusitis. Minimally invasive endoscopic sinus surgery, as well as balloon sinuplasty may be used to open the sinuses and improve the drainage patterns. After sinus surgery, patient's typically experience fewer sinus infections, less severe sinus infections and improve much faster with medical treatment.