Hi there. I am so sorry you are dealing with this. I had severe hyperemessis with my pg. Ideas for you when you have exhausted all of the things like ginger and accupressure bands and what not:
If you are dehydrated at all and cannot stay on top of it, go in for an IV to rehydrate. I did IVs twice a week for most of pg.
Get a B complex shot from the doctor.
Oral Zofran helped for me but it is expensive so make sure your doc will prescribe it/ insurance will pay for it, but it is worth a shot.
I would stay clear of Phenergren. I didn't respond well to this medication and I don't know anyone who has.
Do muscle testing to see what would help.
Have an adjustment (can help relive nausea).
Have a NAET treatment for pregnancy horomones.
You can also try accupuncture.
BEFORE I get pregnant again I am going to do a series of liver detoxes. Are your liver enzymes elevated? This is usually associated with morning sickness. I am not sure what kind of detox you could do (if any) while pg or even tolerate being sick. I would suggest haveing a friend/loved one look at www.hyperemesis.org
website for suggestions.
I am sorry.... I hope you can get some relief. I have decided when I get pg again I will have a cleaning service come in weekly to clean my toilet and home because I was basically in bed or in the hospital sick for my entire pg and ANY odor (even odors one can't normally smell) would make me throw up.
Hang in there!