I agree with Joan, ginger helps calm and settle the stomach. I take ginger supplements, you can buy them in pill form at health food stores. I also sometimes eat pickled ginger, you can buy that at asian supermarkets. And there's always good old ginger ale, although I can't do that myself as carbonation doesn't agree with me.
If you don't like the taste of ginger, you could try peppermint, as that's also calming on the stomach. That also comes in supplement form or you can get peppermint tea. If none of that works for you, I would ask your doctor about what other medication options there are. I take Zofran, which is an anti-nausea pill, and it works well for me and I've had no side effects from it. Good luck, hope you are feeling better soon!