When you have one blocked nostril, how come it switches to the side you sleep on yet it doesn’t drain out when you sit vertically/stand up or how come it doesn’t come out when you try to blow it out?

Question

When you have one blocked nostril, how come it switches to the side you sleep on yet it doesn’t drain out when you sit vertically/stand up or how come it doesn’t come out when you try to blow it out?

In: Biology

Answer 1

Nasal mucus and nasal congestion are too different things.

People commonly believe congestion is snot. It isn’t. Congestion is a swelling of the tissue in the nasal cavity.

This is why you can blow and blow and get nothing out.