Acid reflux happens when the contents of your stomach travels back up into your throat, causing a burning sensation. It happens when the ring of muscles at the bottom of your esophagus (the esophageal sphincter) is left open. This irritates the lining of the esophagus, which causes symptoms often referred to collectively as heartburn.

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Authored Jan 06, 2022 by Joseph Issac, MPharm
Reviewed Jan 06, 2022 by Prabjeet Saundh, MPharm