Cut back on alcohol, caffeine, coffee, soda, fried foods, greasy foods, etc.
Do NOT use OTC antacids. Acid reflux or severe heartburn is caused by too LITTLE acid in stomach. Antacids would reduce the necessary acid that is needed to break down your foods.
First, make sure it is not symptomatic of any other more severe disease. See a doctor.
If it is GERD or acid reflux...
Treat naturally and healthfully...
1) Take one capsule of Slippery elm supplement before meal
2) Take one or two chewable tablets of licorice on an empty stomach
3) Take one teaspoon of aloe vera juice or gel before and after a meal
Hope this helps...
Dr. Peters