By any chance have you heretofore had a common cold? By any chance did you do away with the problem? Obviously you survived it! You cannot heal a runny nose itself, nevertheless your body generally develops resistance to any cold infection within several weeks. That is called being healed by your own immunity!Parents have in the past had a great deal of the rhinitis viruses. Parents have established immunity to the ones they have actually had. Therefore there are not as many runny nose infections around for parents to acquire. That is why adults only succumb to a few colds annually whereas youngsters get a dozen runny noses per year.