Perchance have you formerly suffered through a common cold virus? Perhaps did you get rid of the infection? Certainly you did! You can't heal a runny nose directly, however your system typically develops resistance to any cold infection within a couple of weeks. We call that healed by your personal immune system! Grownups have actually previously had a lot of the runny nose infections. Parents have actually acquired resistance to the ones they have actually had. Therefore there are not quite as many runny nose infections existing for grownups to acquire. That is why adults only get infected with a couple of colds annually whereas kids get a dozen runny noses per year.