Hi there .... My daughter, who is now 45, was diagnosed with an S curve scoliosis when she was 9. Our Orthopedist at the time had a Physical Therapist working for him, from Germany, who was absolutely wonderful. We went in every month and she would give my daughter another exercise to do 2x a day ... within a few years she had a series of 12 different exercises to do twice a day. They were to strengthen her abdominal muscles and core muscles to hold the S from getting any worse, thus making her have to have the Herrington Rods. Well, God bless my daughter and that P.T. because while Jen still has the S scoliosis, it never got any worse ... she's gone on to have 2 children, and from the front, you'd never know she had this deformity.
Perhaps strengthening your core, very faithfully (I sat with her every time), would prevent it from getting worse. Good luck.
abby