I have a question about belly on piercings?!?

I got my belly on pierced 4 days ago, and it's still really sore. Is this normal? The piercer told me to use rubbing alcohol with q-tip on my barbells to clean it, and then use a little Neosporin. I've looked on other websites and they've said to use saline and sea salt? I asked my piercer about this and he said all that will make it do is "scab". Which is the best way to go? I really don't want it to get infected, and I want it to heal quickly. He told me it would take about 9 days to heal. Is it safe to swim after that? thanks! :D