Yes, ladies, it is sad but true about how MS drugs, among other medications, affect perms. I mentioned my MS to several stylists here in town, and no one would attempt a perm because of the medications I was on.
Oh, and it seems true about adding color to your hair; I had a stylist add reddish hightlights to my hair and they were gone in about two weeks!
Now, taking color out (blonde highlights, bleach) seems not to be a problem as I had this done several weeks ago.