Phenergan is one thing I have heard prescribed that seems to have good results,
although I believe it causes sleepiness. Ginger tea can help. You might want
to visit your local health food store and see what they recommend. Also, I
think there is a bracelet you can buy that puts pressure on the acupressure
point that controls nausea.

All this is hearsay for me because I only suffer from very mild
dizziness/nausea for about 10 days with my pregnancies. I'm sorry you are
having such a hard time!

Leslie