Generally, duodenal ulcer S2 stage can be cured. The S2 stage of duodenal ulcer, the white scar stage of the ulcer, means that the ulcer has completely healed and formed a white scar, indicating that the duodenal ulcer has recovered after treatment, and ulcers in this period usually do not require special intervention. Duodenal ulcers in the S2 stage are mainly treated with omeprazole and thioglycollate to promote further healing and recovery of the ulcer. In terms of diet, one should pay attention to a light diet, avoiding the intake of high oil, high salt, spicy and stimulating foods to avoid aggravating the condition. You can choose fresh fruits and vegetables, which are rich in vitamins to help repair the damaged mucosa of the digestive tract; consume more easy-to-digest foods such as millet porridge and noodles to reduce the burden on the intestinal tract.