<prompt> A 35-year-old male presented with nasal discharge, facial pain and fever which persisted with several courses of antibiotics and antihistaminics over a period of 3 months. On nasal endoscopy mucopurulent discharge from middle meatus and inflamed sinus openings seen. His NCCT nose and PNS is given below. He should be best managed by:Repeated antral washoutFunctional endoscopic sinus surgeryCaldwell-Luc operationLynch Howarth operation  <response>: b Functional endoscopic sinus surgeryRef. Scott Brown, 8th ed., Vol 1; 1072NCCT shows left maxillary sinus asterisk haziness so sinusitis. 