Thanks Laura. I tried betahistine (Serc, in Canada), and it worked a bit, but my doc doesn't want to prescribe it for me. Seems that plain Gravol worked about as well for me though, it's the only thing that can keep me from vomiting every half hour when I get a really bad few days. I haven't been able to drive, or even take a trip in a car in a couple weeks, because it's just WAY too much movement for me to handle. I know if I increased my steroids, it would help, but I'm already on a really high dose and it's not a long term solution....I'll still hope for the radon therapy idea!
