Looks like a mosquito just got into my nose. Hey, how do I make sure this little bastard isn't in my nose? I'm afraid it will ..
A-a-CHOOooo! Jk. Just use a tissue to blow your nose and it should die (or start dying) due to your mucus during this process.
There was a folk tale in my country where a frog ate the mosquito king and hid inside caves, hence why mosquitoes always go to cave like structures like ears and in your case nose so that they could hunt the frog that ate their king.