If you're not having pain or irritation of any kind, then it probably is just the swelling. If ur piercing starts rejecting, it wo not just be a matter of the bar looking longer. The bar will be shallower & the holes for the piercing will gradually move. It is usually a pretty slow process. There is usually a trail of sorts behind the holes as they become migrate, a pink/red line of scar tissue. I've had mine for almost 10 years & it is exactly where it was when I first got it done. I still use my original bar almost all the time, & if I move it where the bottom bead is flush with the hole, there is about 1/8 inch of bar to spare. Note, u should not be pushing on yours & moving it around yet, I am just saying mine is all healed & I have that amount of bar to spare. A lot of people have trouble with navel piercings, but I've always had the theory a lot of that has to do with their popularity & the irresponsible people getting them.so if u treat it well, u will most likely be fine. Of the responsible people I know, no one is had problems with theirs. And also, the neosporin idea is bad- it wo not let the piercing breathe. Just stick to simple washing in the shower with a gentle, gragrance free soap & doing ur sea salt soaks. And leave it alone- every time u touch it, u risk getting bacteria or other irritants in it.