Actually, I have a very odd way of dealing with it. XD;
I take fast, steady breaths and I count them. Usually, I count about 1,000 fast breaths, and the ache is gone. Oh, and I know it's stupid, but cartoons help. XD Cartoons have always comforted me, so whenever I watch them, it eases the nausea some.
Oh! When you're nauseated, you're supposed to lay an ice cold cloth on your head, and squeeze the fat in your hand between the index finger and the thumb. It focuses the nerve on something else, so you don't feel the nausea anymore.
I take medication if I have the stomach flu, though.