Belly Ring Healing time and cleaning?

Hi, I just got my belly button pierced about a week ago but I have a few questions. First off, the guy who did it pierced it with a plain stainless steel bar, he said as long as I do the salt soaks and keeping it clean, it should heel in a few weeks. I know a few other people who got theirs done at the same place and they said it actually did heal in a few weeks. But the Internet says months so I'm confused. Also I've been using bactine aside from the salt soaks but I heard that was bad so what kind of soap is good for it???