I'm sorry your son is having so many problems. When I was in constant relapse mode, my doctors put me on Cytoxan too. For me, it did stop the relapses, but I was sick & slept for three weeks, would have to get blood count checks in between (to make sure my white blood count was low / knocking out my immune system), and then by the fourth week I'd feel pretty good, but then the 5th week came and the round of Cytoxan would start again. For me, I chose to not continue. After my neurologist told me all they had left for me was chemo (Cytoxan), I sought a 2nd opinion from a Naturpathic Doctor (ND). It's been three years, and I feel amazing. But this was the path I chose and it took a lot of work.
I'm not sure if this helped?!? Please keep us updated on how he's doing.
Stay at home Mom
wheat / dairy free & organic since 2007 -- amazing difference!
Diagnosed with RR MS 11/2001
Copaxone and starting LDN
Healing more and more every day