Maybe have you previously had acute rhinitis? Maybe did you heal from the problem? Of course you did! You can't treat an acute rhinitis directly, nevertheless your body normally creates immunity to a certain cold infection within a few days. That is called being healed by your personal immune response!Parents have actually already had a great deal of the runny nose infections. Parents have actually created resistance to the ones they have had. Therefore there are not quite as many runny nose viruses remaining for grownups to catch. That is why parents just succumb to a couple of colds each year whereas children get a dozen runny noses per year.