jojo,
When I got my navel pierced, the only thing I used was the sea salt and warm water solution 4JWY mentioned above. I swear it works! I would get a glass of very warm/hot water with a teaspoon of salt and bend over it. I'd put my tummy directly onto the glass and then roll over on my back onto my bed/sofa. I'd just hold the glass onto my tummy for about 5 or 10 minutes, allowing it to soak. If you hold onto it tight enough, the suction will keep it from spilling. I did that every day for 10 days and I never had a problem with my healing. I've never used ointments, because I'd heard it was really bad. NOTE: I got my navel pierced with a curved barbel, not a ring. I've had it for 10 years now (before it was the cool thing to do)...never had an issue.
Andi