My wife says when she eats out or drinks out it burns going into the stomach?

Unlikely: That is highly unlikely. How would her stomach know where she's eating at? Most likely, she is eating foods she is sensitive to, too much food, more oil, or consuming more alcohol than usual. Both of you should analyze exactly what she eats and drinks each time and the quantity. Then, what is she known to be sensitive to & what does she usually not consume at home? Eliminate things one at a time.