Hi, I don't know what all you have tried but one thing that worked for me was eating before I'd get the 'morning' sickness (which lasted all day for me, don't know why then call it morning sickness!). I had crackers I kept by the bed and I'd eat some before even getting out of bed. Then I munched all day, on crackers or anything like that. As soon as I was feeling better I swore off crackers for quite a while Also those little Campbell soup on the go drink containers were good. I ate lightly all day, no heavy meals. I also had to recognize that certain smells, such as meat cooking, set me off. I had to avoid anything like that. It wasn't until about my 14-15 week that I was feeling all better, but these ideas helped me. Good luck to your daughter!