A runny nose just might be a runny nose, but a CSF leak could still be a possible cause of your nasal discharge. Amanda MacMillan is a health and science writer and editor. Her work appears across ...

Tears also drain into the nose, per the National Eye Institute — hence the runny nose when we cry. There are different types of tears, per the AAO. Basal tears are present in the eye at all ...

A runny or stuffy nose can be a symptom of the flu, a cold or allergies, and it can be hard to discern which one you have. So how do you know what’s really going on with your nose? “More than likely ...