The best established medicine can tell you is she *had* SP"MS" but that sometimes these people have occasional remissions or placebo effects. Nobody ever goes back from "SP" to "RR", apparently. I think it's a scam, and that there is no such a thing, as "SP", or "RR". Not helpful, I know, but it's a disease, self-worsening, doesn't normally go backward forever, and it worsens as you age. Logic says, enjoy whatever you have left.
But I think this thing is a lot closer to being figured out than established medicine tells. Maybe that's denial. If so, I guess it's a constant threat. I thought I was through denial and out the other side. I still have benefits that haven't worsened again since 2010. Not many, but some, and good ones. I hope you have more improvements.
"Try - Just A Little Bit Harder" - Janis Joplin
CCSVI procedure Albany Aug 2010
'MS' is over - if you want it
Patients sans/without patience