What could cause mucous from the nose to turn permanently liquidy?
I don’t mean having a runny nose, as in you constantly have to blow your nose, but to stop having the regular thick kind of mucous. I know someone who has been complaining about it being always like slimey water, for a couple of years. It is not allergy, or cold since it is always been there for the last 2 years. What could that be the symptom of?
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