Suggest Treatment For Tremors While Suffering From Sydenham S Chorea

My granddaughter developed Syndenhams Chorea after untreated strep infection. She now has tremors and her pediatrician gave her steroids which helped for awhile she also takes shots every 28 days. The tremors continue and the neurologist said it is annoying but she has to learn to live with it. That cannot be the answer. How should we proceed? Email: YYYY@YYYY