Hi Danny, OK for now fins some sea salt, and give it a nice warm wayer wash, and yes it will sting, by doing this it will clean the wound and start the healing prosess, do this ywice daily for the next week, but dont try having sex for a couple of weeks and when you do make sure you wear a condom.
Theres a little old saying that goes, when ever you wont a rot a tat tat, be sure to wear a mac.
Good Luck