Question for nausea...

Stephanie • My husband and I just found out we are having a rainbow baby due November 16. We have our angel baby Ella Grace 11/9/15.
Has anyone had such severe nausea that you became almost dehydrated because you couldn't keep food or water down?  If so did your doctor prescribe you anything? Mine gave me Zofran and I've read mixed reviews. I need some relief I don't want to end up in the hospital.