This sounds like a case of gerd(gastro intestinal reflux disease)
Next Steps
Some medications that will help include an antacid like Tablet pantoprazole 40mg three times a day and a prokinetic like Tablet cisapride 10mg 4 times a day 15 minutes before meals
Health Tips
The best thing to do in this situation is to avoid the triggers that will cause more acidity and regurgitation.
Avoid spicy foods
Avoid over eating
Avoid lying down immediately after eating