Seasonal changes are common, so is changes in the color of your snot, or nasal discharge ... your snot to look yellow or green. If your snot is red, brown or black, it may mean you have a nose ...

For some people, the classic symptoms of a sinus infection, including nasal congestion and discharge, are also accompanied by ...

A runny nose just might be a runny nose, but a CSF leak could still be a possible cause of your nasal discharge ... and National Geographic's The Green Guide. Angela Ryan Lee, MD, FACC, is ...