A medical instrument for looking up the nasal cavity.
Rhinoscope
The doctor will use a rhinoscope to examine the inside of a person's nose and nasal passages. This procedure allows them to visually inspect the nasal cavity for any abnormalities or conditions affecting the nose.
Doctors use the otoscope to look in the nose; though technically, it is for the ear. But it is a handy device and they use if for ears, nose and throat.