sou wrote:IIRC, eosinophilia is a marker of severe (or not-so-severe) allergic reaction. What did your doc say about its cause?
There's no way to know for certain. Eosinophilia isn't a reaction that is as immediate as anaphylactic shock.
But we stopped the Tysabri, and the eo's went away. We (me, the doctors) had to assume it was the cause.
And the RA, I just don't know. In all likelihood that's probably just a coincidence. A big, nasty, *painful* coincidence. No answers here about that.