During your FESS surgery, a thin endoscope will be inserted into your nose to help your surgeon see into your sinuses and insert small surgical instruments. There’s no need to make any incisions on the outside of your nose.
The surgery may involve removing any tissue, such as nasal polyps, that’s blocking your sinus.
FESS surgery is normally performed under a general anaesthetic, which means you’ll be asleep during the operation. You’ll be able to go home the same day, but you should arrange for someone to drive you home from the hospital.