Perchance have you hitherto suffered through acute rhinitis? Possibly did you get rid of the infection? Certainly you recovered! You will not heal a runny nose itself, but your system typically establishes resistance to a specific cold infection within a couple of weeks. That is called being healed by your very own immune system!Grownups have in the past had a great deal of the runny nose viruses. Parents have established resistance to the viruses they have had. So there are not so numerous of cold viruses remaining for parents to acquire. That is why parents only get infected with a couple of runny noses per year whereas children may get a dozen colds each year.