Question about pregnancy, eating, and sickness?

I've been having that problem too, & I'm only 22 weeks. My friend asked her doctor about her sickness & he gave her some medicine (although I don't know what kind) to help her & she says it works well. Your fiancee's doctor might be able to prescribe her something but I'm not sure it's completely preventable. Just another joy of pregnancy for some people! Maybe she could adjust her diet & try eating crackers, ginger ale, and bland foods that are less likely to get her sick. Hope it gets better because that sucks!