Common symptoms of duodenal ulcer include stomach pain, bloating, burping, acid reflux, nausea, and vomiting. The pain typically becomes more noticeable when hungry and lessens after eating. This pattern of pain is a characteristic manifestation. By performing endoscopy, defects can be seen in the duodenal mucosa. Treatment involves acid suppression, stomach protection, and promotion of gastric motility, with a particular emphasis on dietary adjustments. It is important to avoid smoking and alcohol, as well as spicy, fried, barbecue, and other irritating foods. Garlic, being an irritant, should not be consumed by those with duodenal ulcers. A diet consisting of easily digestible and mild foods is recommended, such as porridge, soup, noodles, or very tenderly cooked meats, which can assist in the treatment of duodenal ulcers.