YB, I'm so sorry you're having this crappy symptom....it's the worst.

I don't get vertigo often but when I do I'm down for the count. Liike everyone else has suggested sleep is the best medicine. I never took steroids for my vertigo - and I'm sure if I had I wouldn't have been able to sleep. Maybe your doctor can prescribe something that will help you sleep during this episode.
I hope by today you're feeling better and the symptoms have subsided.