Well you are on the maximum dose of Zofran so the RO is probably right. Some of the things that Jack found helpful - he was on Zofran twice a day - was to use compazine in between for breakthrough nausea. I wouldn't stop the zofran but see if they will give you a prescription to add to it. There's supposed to be some benefit from Ativan as well - plus it kept him calmer.

Mostly we found that getting outside, even to sit on our stoop was helpful. There was something about going outside that settled his nausea. Some days he walked around the block, other days just down the driveway and back.

Smells from food bothered Jack too and we used ginger to help. Just opened up the jar and smelled that.

Hope you feel better.
Regards JoAnne