I'm a big believer in George Jelinek's program which involves an MS diet, exercise, etc. Then I add some of my own things so what I do is listed on the Plan tab at http://intelligentguidetoms.wordpress.com
I've heard that some have some nasty, nasty symptoms after stopping Tysabri. For this reason alone, I think I would try to make sure I was in top notch shape via diet, exercise, etc.
Anyway, all I have ever used since 1991 is natural approaches. They have worked so well for me, my doctors have never recommended I take any drugs. Then again, a lot of doctors here are not so impressed with the drugs as are doctors in many places. In total since 1991, I've had only four relapses. That's quite mild I'd say although the initial flare and a couple of relapses were NASTY, NASTY.
George Jelinek web site is at http://www.takingcontrolofmultiplesclerosis.org
. You probably know about it all ready. He also has a Facebook page called "Taking Control of Multiple Sclerosis" and he issues little bulletins every now and then on recent research. He's always very informative and helpful.