Heartburn while sick occurs when illness weakens your digestion, allowing stomach acid to flow upward into your esophagus. This common side effect of vomiting, coughing, or lying down too soon after eating worsens when you're already nauseous.
The lower esophageal sphincter (LES), a muscle between your stomach and esophagus, usually prevents acid from rising. When you're sick, increased pressure in your stomach-from vomiting or coughing-pushes acid past the LES. Lying down while recovering also makes it easier for acid to escape.
Several factors contribute to heartburn during illness:
Many people assume heartburn while sick is just part of being ill and don't take steps to prevent it. Others rely on over-the-counter antacids without addressing the root cause-like staying upright after eating. Some even drink citrus juices for vitamins, which can worsen acid reflux.
One non-obvious factor is medication. Many cold and flu remedies contain acids that irritate the stomach lining, making heartburn worse. For example, aspirin and ibuprofen can increase stomach acid production, while decongestants may relax the LES.
To reduce heartburn while recovering from an illness:
While heartburn is common during illness, persistent symptoms may indicate a more serious issue. If heartburn lasts longer than a week, or if you experience difficulty swallowing, black stools, or vomiting blood, see a doctor immediately. These could be signs of an ulcer or gastroesophageal reflux disease (GERD).
Heartburn while sick is uncomfortable but manageable. By staying upright, avoiding trigger foods, and using simple remedies, you can reduce discomfort and speed up recovery. If symptoms persist, consult a healthcare professional to rule out underlying conditions.