Welcome to the forum! I'm sorry that you're going through a flare right now--MS stinks! Don't be scared about Tysabri--the odds are way in your favor. I hear great things about it. My sister is getting infusions and can tell a huge difference in her fatigue. Right before she is due for her next infusion, she crashes, so that shows how effective that it is.
How on Earth are you able to keep up with such a fast-faced, stressful job? Oh my goodness! I bet you love it, though.
Hoping that this flare ends, soon . . .
Deb
Personally, I haven't had a flare last longer than a month. However, it's hard to tell, because at first I'm never sure I'm in a flare. I just start feeling worse and worse, until I decide that I must be flaring. Then it's a week to three weeks, and I start feeling better again. Then it takes about two-three weeks for me to fully recover from the flare.
Switching to a stronger drug like Avonex or Tysabri is done only if the doctor thinks that you're progressing faster than you should be. From what I understand, typically the neurologist sets you up with another MRI and checks your lesion load. If the lesions are multiplying faster than they should be, he will want to put you on something that will slow things down.
Good luck! It ***** to have hand numbness - mine started with numbness, and now both hands are weak and numb! (But not as numb as they used to be, so that's something.)