It's best to order food regularly, don't eat snacks between meals, and prepare some biscuits. 12 duodenal ulcer is hunger pain, which usually occurs 3-4 hours after meals. Alkaline substances can alleviate. Eat more rice and eat something when you are hungry.
Maybe your ulcer is mild, so you should master the following by yourself and eat less fruit when you are sick.
I like to drink milk
Drink more milk in the future. You can drink it. Eating soft fatty foods, such as cheese, is beneficial to suppress stomach acid.