This seems to be related to MS. Steroids
may be indicated at this stage as well, However you should visit your neurologist
once again and see what can be done now.
There is mesenchymal stem cell
therapy which is in experimental stages and have shown encouraging results for relapsing remitting MS and can be tried with steroids as an alternate treatment strategy however you should give preference to Avonex or other similar drugs at this stage since they are well proven.