Perhaps have you once endured a cold? Likely did you recover from the virus? Of course you survived it! You can not heal a cold itself, yet your system generally creates resistance to any cold virus within a couple of days. We call that being healed by your own immunity!Grownups have in the past had a great deal of the cold viruses. Grownups have acquired immunity to the viruses they have actually suffered from. Therefore there are not so many runny nose infections around for parents to acquire. That is why grownups just succumb to a couple of runny noses each year whereas kids acquire 10-12 runny noses annually.