Functional endoscopic sinus surgery (FESS) is a common surgical method to treat chronic sinus infections. In a FESS procedure, the surgeon uses a magnifying endoscope inserted through the nostrils to see and remove affected tissue and bone.
In general, the goal of sinus surgery is to flush out infected material, open blocked passages, and keep enough healthy tissue intact so that the nose and sinuses can function normally.
Surgery to treat a chronic sinus infection is usually performed if medical treatment hasn’t worked. If the doctor decides that surgery is the best option, they may perform one of these common FESS procedures: