I get motion sickness easily - I wore the patch mentioned above and was able to ride everything during
our trip to WDW w/o a problem. No one else in my family usually suffers like I do, but everyone but me (thanks to my patch) felt queasy after Star Tours. It is by prescription only, however. There are over the counter meds - dramamine, seabands (that you wear on your wrist) that you may check out. (Even with the patch, I was still not brave enough to attempt a spin on the teacups!) Good luck!