Hi,
I suffered from terrible morning sickness with both my pregnancies, both lasted until about 18-20 weeks. I don't really have a remedy as such, because I never discovered anything that cured me.
My doctor prescribed Zofran for my first, and Zofer Rapitabs for my second. Both pills really help but are very expensive. It makes it far tolerable, but doesn't take the sickness away totally. Asic didn't so much for me.
Like another lady said, keep eating and snacking, the second I felt my tummy growl I knew I was about to be sick. Empty tummy makes it worse.
Cream soda helped for my 1st pregnancy, and this time I had small sips of Coke (even if you're not supposed to!).
Green apples helped both times. Lemon wedges helped. Funny enough, a piece of cheddar cheese also helps, put it in your mouth and suck on it like you would a chocolate.
Some days the sickness just wouldn't pass, then I simply had to make myself sick and get it over with.
Good luck, I hope you feel better soon. I've already decided that I won't have more kids, cannot go through all that a 3rd time!