Your artist will give you instructions about when and how to wash it, what kind of lotion to use, etc., especially if this is your first one. If he tells you to use a lotion you can't find, though, I've got 6 tattoos and unscented Lubriderm has always worked perfectly for me.
If you follow washing and lotion directions and are careful, healing is a pretty fool-proof process. Just treat it like you would a scab. Keep it clean, let it breathe, don't pick at it, etc. Good luck! Which part of your body are you getting inked?