She should avoid fatty, oily and spicy diet. Have some walk after having food instead of taking rest. Have multiple small meals instead of heavy meals. Have regular sleep habits and avoid stress. Lots of green leafy vegetables, fruits.   She should get prescribed tab Pan DSR 40 mg or esomiprazole domperidone combination beforebreakfast once a day for 2 weeks.  Hope this helps you and get back if you have any doubts.