I used emitrol... You're allowed to take it while pregnant... That, Ginger ale, and crackers helped alot. My cousin found that almonds helped her. She would keep them right next to her bed. Hope she starts to feel better
There are a lot of tricks out there if you just google it, avoiding certain foods and eating others, not eating at certain times, etc. I have heard that ginger can help. But if she is really severely ill with morning sickness, she should talk to her doctor.