Antacids are usually the first type of drugs doctors recommend for chronic heartburn you can get them over the counter acid reflux (gastroesophageal reflux disease) in adults (beyond the. Constant heartburn and acid reflux. How heartburn and gerd occur acid reflux occurs when the sphincter muscle at the lower end of your esophagus relaxes at the wrong time, allowing stomach acid to back up into your esophagus this can cause heartburn and other signs and symptoms frequent or constant reflux can lead to gastroesophageal reflux disease (gerd).
constant heartburn and acid reflux