Conceivably have you ever endured a cold virus? By any chance did you do away with the infection? Obviously you got over it! You cannot heal a cold itself, however your body generally develops resistance to a particular cold virus within several days. That is called being cured by your personal immunity!Grownups have already had a great deal of the runny nose infections. Adults have created immunity to the ones they have actually suffered from. So there are not as many runny nose viruses around for adults to become infected with. That is why grownups just acquire a few runny noses annually and youngsters may get a dozen runny noses each year.