[Topical comments on chronic rhinosinusitis]

Chronic rhinosinusitis (CRS) is defined as a group of illnesses that is characterized by inflammation of the nose and paranasal sinus mucous membranes that lasts at least twelve weeks. In Europe and the U.S.A., CRS is one of the most widespread illnesses, with incidence and prevalence on the increase. There are various potential causes and triggering factors for CRS; likewise, the symptoms from individual to individual can be very different. Up until now, there has been a dearth of evidence-based studies on conservative drug treatments for CRS. For many patients with years of recurring inflammation attacks, the operative correction is often the only therapeutic option. The minimally invasive functional paranasal sinus surgery has achieved good and, also, long term therapeutic responses.