Acid from the stomach supports digestion, however when it backs up into the esophagus, it causes irritation. When you swallow, your lower esophageal sphincter (a ring of muscle at the base of your throat) closes to prevent gastric acid and food from entering the esophagus. The acidity of the stomach could be reduced by eating certain foods. Add them to your daily diet https://www.tumblr.com/birkdalby09/718330669715128320/what-foods-immediately-neutralize-stomach-acid