So, how do you catch a cold virus anyway? No surprise here, the leading theory shows the hands touching the nose to be the culprit. Not even sneezing or kissing spread a cold to the extent that contaminated hands do, with active rhinovirus being found on skin and household surfaces even three hours later. When you then touch contaminated surfaces, you pick up the virus at least 60% of the time and it enters the body through your eyes, nose or mouth. This explains how you can catch a cold without even having contact with someone who has one. (Even weirder, scientists are surprised at how difficult it is to catch a cold from a kiss.)
The best way to get rid of germs is to wash your hands by rubbing them together for 10-20 seconds under running water, using regular soap. Soap doesn't kill germs, it just loosens them so they’re rinsed off (and antibacterial hand wash doesn't work on viruses).
But the frustrating fact remains that medical researchers are still confounded by the common cold, and the basics still hold true: no cure yet, wash your hands, chicken soup really does win, and wait for "exciting cure found!"