You have a little membrane up there. In your nose, that acts like a filter to germs. And if you keep scraping that you're gonna break it. Now, you don't have a filter for germs.
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Hahaha really?
The mucous membrane in the nose, known as the nasal mucosa, lines the nasal cavity and plays a crucial role in warming, moistening, and cleaning the air we breathe. It contains cells that produce mucus, which traps dirt and pathogens, helping to protect the respiratory system