The instructions I got when mine was done were to:
Rinse with warm salt water in a glass 2 times a day
when in the shower, wash with the barbell in place by moving up and down, working antibacterial soap into the hole.
rinse and pat dry.
If your jeans rub it, lightly tape a gauze pad over it leaving 2 sides taped, and 2 sides open.
DON'T TOUCH IT unless you wash your hands
DON'T TAKE IT OUT, putting a stud in and out will irritate the hole.
If it's not painful, red, puffy, hot, oozing anything other than the clear, orangy fluid, you probably don't have an infection.
Keep it clean and don't mess with it. I've had mine for a LONG time now and never have anyproblems with it.