I prefer to try and treat the anxiety causing my fears around being sick because I think taking anti emetics on a regular basis just tries to promote avoidance and doesn't deal with the real issue behind emetophobia.
I went through a phase where I took Reglan every 8 hours ever day for 6 months. I panicked every single day that they weren't working and that I would thorw up and then I had to wean myself off the need to take them!
Be courageous, believe in yourself, and be the best woman you can be. I'm with you all the way.