Rhinoscopy is not too painful. Rhinoscopy is divided into anterior rhinoscopy and nasal endoscopy, anterior rhinoscopy is a physician using stainless steel two blade-like tools to hold the nostrils up and down, no pain, but the scope of the examination is limited to the front of the nasal cavity, the nasal cavity is 7-8 cm long, the back can not be seen. Nasal endoscopy is an examination system project that includes a monitor, camera system, light source, and a nasal endoscope placed in the nasal cavity. The nasal endoscopy can magnify the image to about twice, and the examination can reach most of the nasal cavity and even the nasopharynx, but the nasal endoscopy has to extend the nasal endoscope into the nasal cavity, and the nasal cavity is more sensitive to various kinds of stimulation. During the examination, the patient may experience a little discomfort, such as itching, sneezing, watery eyes or a slight painful sensation in the nose. Before the examination, a surface anesthetic, such as 2% dicaine, may be sprayed into the nasal cavity to relieve the pain.