eli5 how mucous keeps coming back after blowing your nose when your sick, even after you blow it all out?
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Your body is constantly producing it. It’s one of the things that help prevent harmful stuff from entering our body through the nose while we breathe.
If you have a stuffy nose, most of that isn’t from mucous, it’s from inflammation. Your tissues have swelled up, narrowing your nasal airway.
How do you think it gets there in the first place? It’s constantly being produced, at a higher rate during some kinds of illness. So you blow it all out, then it fills up again.
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