Likely have you previously suffered through acute rhinitis? Peradventure did you do away with the problem? Certainly you survived it! You can't heal a runny nose itself, but your body typically develops immunity to any cold infection within several days. That is called being healed by your very own immunity!Adults have currently had a lot of the runny nose infections. Parents have established immunity to the colds they have actually had. So there are not as many cold infections existing for parents to catch. That is why adults only succumb to a couple of colds per year and youngsters get 10-12 colds annually.