Frequent heartburn, especially after meals or when lying down, may be a sign of acid reflux. Other symptoms can include a sour taste in the mouth and difficulty swallowing. If left untreated, chronic acid reflux can damage the esophagus. If you experience these symptoms, consult a doctor for proper diagnosis and treatment. Simple lifestyle changes, such as eating smaller, more frequent meals, avoiding spicy or fatty foods, and not lying down immediately after eating, can significantly reduce symptoms. Maintaining a healthy weight, quitting smoking, limiting alcohol and caffeine, and elevating the head of your bed while sleeping are also effective strategies. In addition to these modifications, medications can help manage acid reflux and prevent complications.