How can I temporarily relieve nausea?

I am at a party right now and I took a break to "go to the bathroom". I'm really nauseous, probably due to all of the ice cream and pie that I ate. I feel really bad, and though I know I probably won't throw up (I never do), I'm feeling too poorly to enjoy myself. Can I somehow relieve my nausea for another 2 hours? I have some carsickness pills, tums, and gas pills, but I don't know if they would help....