To add to above what Puneet has suggested …..as it is coming early morning it can be due to lack of sleep or hypeacidity.
You can charge an image of her water bottle with DIGEE SERUM and BALANCE SERUM . She can take sips of this water especially evening onwards till before sleeping every 15 to 20 mins one sip.
The same should be done as soon as she gets up. Before havin first meal she can take this charged water one sip every 10 min.
If she can take this during the day few times it will help further.
This should be continued atleast for 3 to 6 months.