Surgical-Functional Endoscopic Sinus Surgery (FESS)

Functional endoscopic sinus surgery (FESS) is a minimally invasive procedure used to visualise, diagnose and treat sinus problems. An ENT (ears, nose and throat) specialist will gently insert a small instrument, called an endoscope, into your nostril to examine the area to be operated on, then use specialised tools to restore drainage and ventilation between your nose and your sinuses.

Your sinuses are hollow cavities in your skull that can fill up with mucus, and become inflamed and swollen. This swelling blocks the flow of the mucus and results in sinusitis. If your sinusitis does not improve with traditional medical therapies like antibiotics, nasal sprays or medication, your ENT specialist may advise you to take a CT scan to evaluate your condition and decide whether you should undergo FESS.