T.T.
Zofran was my only true relief with my 2nd pregnancy. One thing that gave me temporary relief was sucking on chocolate. I kept a big Hershey's bar by me and just broke off a square and let it melt in my mouth. Sounds weird, huh? I get terrible motion sickness and an old man told me to do it for motion sickness when I was deep fishing once. It worked for that so I thought I'd try it for morning sickness and it helped that also.
Congrats and good luck!!