The causes of atrophic gastritis include Helicobacter pylori infection, duodenal-gastric reflux, and long-term use of non-steroidal anti-inflammatory drugs. There is no drug or food that can guarantee a cure for atrophic gastritis if you stick to it for a year, but some patients can slow down the development of the disease or even reverse the atrophy through active drug treatment. 1. Helicobacter pylori infection: In case of Helicobacter pylori infection, a quadruple therapy should be used to eradicate Helicobacter pylori as prescribed by the doctor, i.e. two kinds of antibiotics such as amoxicillin and clarithromycin, one kind of PPI inhibitor such as omeprazole and pantoprazole, and one kind of bismuth agent such as bismuth potassium citrate. 2. Duodenal-gastric reflux: Reflux-induced atrophic gastritis can be treated with gastric mucosal protectors such as aluminum thioglycollate, misoprostol, and omeprazole. 3. Long-term use of non-steroidal anti-inflammatory drugs: long-term use of non-steroidal anti-inflammatory drugs such as aspirin can lead to gastric mucosal damage. You can change to other types of drugs such as acetaminophen, ibuprofen, etc. as prescribed by the doctor, and at the same time, use gastric mucosal protective agents such as aluminum phosphate and magnesium aluminum carbonate. When diagnosed with atrophic gastritis, dietary management should be strengthened in daily life, less spicy and stimulating food, avoiding barbecue and pickled food, and can be supplemented with medication such as Gastrofuchsin. At the same time, you should consult a doctor in a timely manner, have regular checkups, and choose the appropriate treatment after examination and evaluation by a doctor to avoid delaying your condition.