The treatments for atrophic gastritis after the killing of Helicobacter pylori include adjusting dietary habits, smoking cessation, and medication such as omeprazole and domperidone. 1. General treatment: avoid eating foods that are too hot, too acidic, or high in salt, avoid drinking strong tea, coffee, and other beverages, and quit smoking if you have been smoking for a long time. 2. Drug treatment: need to re-check whether Helicobacter pylori infection occurs again, such as re-infection can use quadruple therapy, such as amoxicillin, metronidazole combined with bismuth potassium citrate, omeprazole treatment; if accompanied by symptoms of abdominal distension can be used to treat domperidone, accompanied by anemia can be supplemented with vitamin B12 treatment. Atrophic gastritis after H. pylori killing is recommended to go to the hospital, ask the doctor to make a judgment, and make individualized treatment plan.