Anyone have help for numb feet and multiple sclerosis? Very bad!?

I am 39, diagnosed at 34, but had symptoms since about 20 years old. Began with losing vision in left eye (optic neuritis) in 2004. Relapses once or twice a year since then with tingling, pain, flare-ups. The latest, and the worst since the vision loss, is both feet are numb. Going on 2 weeks. On Prednisone for 4 days now, 5 more to go. Neurologist at the Cleveland Clinic says to finish the steroids and see how it is. Nothing is helping and now they are burning also. Not much feeling in either one and I cannot believe this is just how it has to be. Very depressing. Any ideas from experience. I need some help….