Duodenal ulcer patients can drink plain water, fruit juice and other foods, try not to drink alcohol, carbonated drinks and other stimulating drinks. Duodenal ulcer is because the stomach secretes too much gastric acid, which stimulates the duodenal mucosa and leads to congestion and ulceration, and the patient will have reflux, heartburn, abdominal pain and so on. During the period of illness, it is recommended to drink lukewarm water, milk, fruit juice and other beverages, and avoid coffee, carbonated beverages and strong tea, so as not to irritate the ulcer surface and aggravate the uncomfortable symptoms. Duodenal ulcer belongs to the digestive system disease, it is recommended to use standardized treatment under the guidance of a doctor, so as to avoid the occurrence of related complications.