Way back on page 115 or so there was a few threads about motion sickness relief. I'm an RN and have a few suggestions:
I am a big Dramamine junkie, but only for in the car where I can sleep, but instead of taking a whole Dramamine pill, try breaking it in half, or even 1/4 to see how your body will respond to it, you can always increase it in increments if you need to.
Another option is the accupuncture type theory sea bands, they look like little wrist watches with magnets that activate a pressure point on the pulse side of your wrist that is related to motion sickness, for those not wanting the side effects of oral meds. I have never used these so don't know how well they work, but I do know a lot of people use them. Since knowing about them, if I feel queasy, I will rub the inside of my wrists sometimes and it has helped.
There used to be an herbal based oil out there in a tiny brown bottle called "Travel-Ease" that you rub some on your wrists or behind your ears, had a bit of an odor to it but not unpleasant, I used it a lot with my kids and they said it helped.
Those mister fans are great for motion sickness and while spraying them on your face, imagine standing by a giant waterfall, guided imagery is a great distraction technique.
Suck on ice chips, or even munch on them. Also mint is a tummy soother, pack some Life Saver Pep-O-Mints with you, I've never tried gingerroot but I know they give it to pregnant women for morning sickness, they also sell lollipops on pregnancy websites that have ginger in them, I think they were called "Preggy Pops" or something like that, also hard candies to help with nausea.
Stay away from super sweet sodas and foods, and greasy rich foods, a recipe for disaster if you are prone to nausea. Stay well hydrated, some queasiness may be due to dehydration/heat sickness. Hard candies, mints, etc, since some queasiness may also be due to low blood sugar. Be sure to pack some PB crackers/granola bar to back the candy up.
Hope these tips help...if you know spinning rides or coasters or whatever has made you sick in the past, don't try to be a hero and just don't ride them!
Blessings, Michelle