To the best of my understanding your nose is home to countless germs encapsulated from reaching your lungs. If you get a cut inside it, or near it, why would you not ALWAYS get sick since those germs would have a straight pathway into your body?
In: Biology
I’m assuming you’re asking why your nose seems to heal quickly even though it is associated with being a point of administration for viral infection. The reason being: the inside of your nose (like your mouth) is dominated by epithelial tissue that contains more blood vessels than the skin that covers most of your body. Although this allows certain things to enter your blood stream and infect you it also helps the tissue heal from trauma faster.
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