Ginger and sea bands are great suggestions – both have been shown in research studies to help some pregnant women. Some other suggestions:
If you’re taking prenatal vitamins, stop for now. They usually make nausea worse. The baby’s nutritional needs are minimal right now, and it’s better for both of you if you can keep down some food.
The key for most women is to keep a little something in your stomach all the time. Put a piece of dry toast or a few crackers on your bedside table, and nibble before you get out of bed. Keep a little food in your pockets and graze throughout the day. Most women feel the sickest when their stomach is the emptiest.
Separate your liquids from your solids when you do eat. And eat what sounds good to you rather than trying to eat the healthiest most balanced diet. Potato chips sometimes stay down better than a salad or tofu casserole. It’s OK for now.
Vitamin B-6, up to 150mg a day might help, especially if it’s combined with doxylamine (a sedating antihistamine marketed as Unisom, an OTC sleep aid) at bedtime.
Re: precription meds, Zofran is a fabulous drug for severe nausea and vomiting of pregnancy, but very spendy ($25–30 per pill!), and frequently requires prior authorization from your insurance company. Phenergan is a mild sedative and anti-nausea drug and works well for some women. Reglan is another good option. Reglan and Zofran are category B for safety during pregnancy, Phenergan is category C.
Hope this helps!