Hi, I was also diagnosed with the same thing
and my Dr gave me Kapidex which is similar to
Nexium. After 2 days on the pill, I starting having side effects of diarrhea, nausea, and vomiting for almost 3 days. They then switched me to Protonix which I am glad to say is working very well. So like CalGal said, it works differently with different people. Your daughter just needs to find one that works best for her. Good Luck!