Hello Winona. Sorry it took me so long to answer. I was away yesterday.
She could try ginger tea. Ginger helps to alleviate nausea. Put 1/2 tsp (dried) in a cup (coffee cup) and let simmer for 10 minutes. Strain and drink. If she doesn't have dried, a bagged tea will work. Be sure to sip slowly.
If that does not work, she could also try peppermint. Make a week cup of peppermint tea. She could also mix a bit of each and try that.
If she is suffering from heartburn as well, she could try slippery elm bark powder. Make into a thin tea (1tsp per coffee cup) and sip. Alternatively, she could put a pinch on her tongue, and sip on tepid water.
When she starts to keep things down, the slippery elm in a thin oatmeal consistency is really beneficial for the stomach and add back nutrients lost. Many times it is given to children and the elderly that have been sickly.
She should try to drink the tea before she gets out of bed.
Good luck to her. Hormones are raging, and some people suffer greatly with nausea. I had it ALL day with my first. Never knew when it was coming. I tried crackers, ginger ale...the whole nine yards. Nothing worked.
Relaxation, meditation and breathing can help. Sometimes nerves can get in the way.
She should see her doctor. If she is losing a lot of fluids, both her and the baby are losing essential vitamins. Nausea usually stops after about 3 months as the hormones balance themselves out.
Hope this helps, and let me know how she is doing.