How much snot can one head really produce?

Question

I mean when does this well run dry

Answer 1

It won't, and you don't want it to. If it did, the sinuses would dry up and crack. The pain and suffering would be worse than anything I can think of. Just a slight bit of air through the nose would be like a knife.

Answer 2

Funny way to phrase a question, which hopefully is a real question... If there is something irritating your nasal passages then it may never stop running.  Go see a doctor if your nose is constantly running without any sign of a head cold or common over the counter allergy medicine does nothing to clear it up.