Likely have you formerly had a cold virus? Likely did you heal from it? Of course you survived it! You will not treat a runny nose itself, nevertheless your immune system typically establishes resistance to any type of cold infection within several days. That is called cured by your own immune system!

Grownups have previously had a great deal of the runny nose viruses. Grownups have established immunity to the viruses they have suffered from. Therefore there are not lots of runny nose viruses existing for grownups to acquire. That is why parents just get infected with a few colds each year and kids acquire 10-12 colds each year.
http://uploadb.me/direct/5cncn4a4wqje/253907.pdf.html