Possibly have you hitherto been down with a common cold? By chance did you eliminate the issue? Naturally you recovered! You can't heal a cold itself, yet your body generally creates resistance to any cold infection within a couple of weeks. We call that healed by your very own immunity! HPV is identical in that human papilloma virus is just another infection. Therefore you can simply establish resistance to HPV virus. However, HPV is much better at evading your body's immune system compared to the cold infections. Moreover you have to work with more diligence to obtain resistance to human papilloma virus.