By chance have you a while ago been down with a common cold virus? Probably did you heal from the virus? Of course you did! You will not heal a runny nose itself, nevertheless your system usually creates immunity to a particular cold infection within a couple of weeks. That is called being cured by your very own immune system!Grownups have actually previously had a lot of the rhinitis infections. Adults have actually created immunity to the viruses they have had. So there are not so many runny nose infections existing for adults to catch. That is why adults just acquire a couple of colds annually and children succumb to 10-12 runny noses per year.