Yellow mucus means your body's immune system ... In fact, past research has found that nasal discharge turns different colors due to the presence of white blood cells, which battle the infection.

Thanks for your question. Nasal discharge that is yellow, green or brown can be a sign of an infection of the upper respiratory tract. In the vast majority of instances, the infection is caused by ...

Itchy watery eyes with allergies, and itchy throats sometimes. With cold, you’re going to have green-yellowish nasal discharge vs. clear with the allergies. It’s really the longevity of it ...