COVID causes other nasal symptoms, such as a runny nose or smell disorders. A bloody nose may result from dry air or nose injuries or irritation. COVID treatments like oxygen therapy may also play ...

From clear to black, here’s what your nasal discharge reveals about your health and when it’s time to see a doctor.

“If your runny nose is accompanied by a fever or body aches ... this can lead to them having little nose bleeds or when they blow their nose they will notice blood in the mucus and, again, this is ...

And that’s not forgetting the frustration of developing a blocked, runny nose mid-run – perhaps one of the most inconvenient side effects for a sport that requires you to consume lots of oxygen.