Please, please be wary of any medical information you may receive on a generalized web site such as Answers.com. Since you are so young, this is a complicated situation. Talk to your doctors about what treatment is most appropriate for you.
You can't really "fix" it per se because it is a drying out or decaying of the disc. As we get older we all may have some form of this..ie that is one reason why we get shorter and hunched over as we age, the disc in b/w our vertebrae shrink. Things you can do though is maintain a healthy weight, take a vitamin, calcium and Vitamin D supplement, exercise, back stretching exercises, Advil or tylenol as directed and a biggy is don't smoke!