Peradventure have you formerly had a common cold virus? By any chance did you heal from it? Obviously you did! You cannot treat an acute rhinitis itself, yet your system normally develops resistance to any type of cold infection within several days. We call that treated by your own immunity!

Grownups have already had a lot of the cold infections. Adults have created immunity to the colds they have actually suffered from. Therefore there are not lots of runny nose infections around for parents to become infected with. That is why grownups just get infected with a few colds annually whereas youngsters usually get a dozen colds per year.
https://www.openlearning.com/u/rosalee-qo6uh9/blog/ClearingHpvVirusNaturally/