The investigator has proposed a novel meatus scoring scale to evaluate nasal insertability by anterior rhinoscopy using a transnasal endoscope. The investigator also suggest endoscopic-guided gauze pledgetting can provide precise nasal anesthesia, thereby reducing trauma/bleeding in the nasal cavity and increasing patient tolerance during transnasal endoscopy. Endoscopic guidance to deliver a gauze strip can confirm delivering it to at least the posterior end of a turbinate. We hypothesize that by using endoscopic-guided method, gauze pledgetting to both the inferior nasal meatus (INM) and middle nasal meatus (MNM) simultaneously is more tolerable than only gauze pledgetting to a single meatus.