Thank you for your query.
Your child is suffering from gastritis
.It is irritating the diaphragm.This is also the cause of her pain in the left side.
Give her some antiacid medications daily for 10 days.If she has pain give her antacid
Avoid hot,spicy food and fruits.
If you have any further queries you are free to consult me.Hope this answers your query.Wishing your child a speedy recovery.Have a nice day.