Myth or fact? Snot can be good for you. Producing mucus will help clear your sinuses, help clear your nasal passages. Laura Martin, MD, MPH And the snot and the mucus, they help keep our mucous ...

air hardens the mucus into a solid booger, a gooey prison cell for your ensnared enemies. Now, normally, you can get rid of that bacteria-ridden ball either when you sneeze or blow your nose.

Reindeer suffer with symptoms similar to a cold, such as coughing and spluttering - and maybe even that legendary red nose. The cause is not a common cold, however, but an infestation of fly larvae.

Post-nasal drip occurs when excess mucus accumulates in the back of the throat or nose, primarily due to allergies, infections, or irritants. Symptoms include throat clearing and coughing.