What is happening when sinus pressure slowly builds in one nostril when laying down?

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Conversely, what is happening when you flip over and the pressure slowly releases (sometimes with a “pop”), and then you feel the other side fill up? However, you never have mucus build up that can be blown out.

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Anonymous 0 Comments

The pressure is not necessarily caused by mucus. Part of it is mucus, but mostly it’s caused by the nasal passages getting inflamed. Even when you’re healthy, you have a “high flow” nostril, and a “low flow” nostril. You can check right now by sniffing with them one at a time. Which nostril is which changes throughout the day, but is usually unnoticed. Until you get sick, and the low flow nostril clogs completely.

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