I think you're doing the right thing. I've never seen the big deal with piercings, especially one like that where it isn't on the face, and, there for everyone in the world to see. Even those don't bother me, but, for a 13-year-old, I would think those would be a little too "grown-up." I think she's old enough to get a belly button piercing, though, they're cute. And, again, it's not like anyone will see it, unless she decides to show it, so, it shouldn't be too negative an impression on people that might judge her based on her choice of jewelry (like if she got it done in a more visible place).

And, just so you know, my belly button piercing didn't hurt at all. It hurts worse when I get my eyebrows waxed. And, I'm a total sissy with needles and pain. I know some experience anywhere from slight to excruciating pain when they have gotten anything pierced. But, my niece didn't have any problems with her belly button, and, neither did I. Your daughter will have to do what they tell her to do, as far as the maintenace goes. If she takes it seriously and follows the instructions, she should be fine. The only time mine was annoying at all, was when I'd catch my jeans on it or something, and, even then, it only briefly hurt.

I think your arrangement sounds great. Because if she can't take care of her eczema, she won't take care of the piercing correctly, either. Good move on your part! And, good luck!