Many people use antacids to relieve a burning pain in the upper part of the chest called heartburn.
Heartburn may or may not be a sign of an ulcer. Ulcers are irritated areas that develop in the stomach in response to infection or increased acid production. They can be small or large in size. Pain is common with them and antacids can be used to treat the pain and protect the ulcer from worsening. Other problems, including heart attacks can mimic the symptoms of heartburn.