Probably have you ever endured acute rhinitis? By any chance did you get rid of the issue? Naturally you did! You can't heal a cold directly, yet your body normally establishes resistance to a certain cold infection within a couple of days. We call that cured by your very own immune system!

Adults have actually previously had a lot of the rhinitis viruses. Parents have acquired immunity to the viruses they have had. So there are not as many cold infections around for adults to catch. That is why adults only get infected with a couple of runny noses each year and youngsters may get a dozen runny noses per year.
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