Thanks for writing your query.
After reading your post, it seems that your daughter is having her symptoms due to increased acidity in her stomach.
She can be given an antacid
40 mg once day before meals along with Domperidone
Following precautions will be helpful :-
1. Avoid spicy/oily foods.
2. Do not miss a meal.
3. Avoid mental/emotional stress.
4. Drink lots of pure water daily.
5. never self-medicate, especially with painkillers and steroids
I hope this is helpful to you.