Peradventure have you once suffered through a common cold? Maybe did you recover from the virus? Naturally you recovered! You can not heal a runny nose itself, however your body normally creates immunity to any cold infection within a few days. We call that being healed by your personal immunity!

Parents have actually in the past had a great deal of the cold viruses. Parents have created resistance to the viruses they have actually had. So there are not so many cold infections around for adults to acquire. That is why grownups just succumb to a few runny noses each year whereas children usually get 10-12 colds annually.
https://issuu.com/cynhadjlse/docs/232674