Generally gastritis caused by Helicobacter pylori usually gets better in about 2 weeks. If the gastritis is caused by H. pylori infection, it usually needs to be treated with quadruple therapy under the doctor’s guidance, which mainly chooses one acid-suppressing drug, two antimicrobial drugs, and one bismuth agent for combined treatment, such as pantoprazole, amoxicillin, clarithromycin, and bismuth potassium citrate, which can kill H. pylori bacteria effectively. In the treatment of gastritis caused by H. pylori, due to the strong regeneration ability of H. pylori, it needs to be taken in full dosage and full course of treatment, and it can usually be recovered in about 2 weeks. During the treatment period, you should try to avoid eating spicy, greasy, raw and cold food. Helicobacter pylori caused gastritis patients, because the condition has a mild and serious, need to be treated on a case-by-case basis, how long it can be good, it is recommended to go to the hospital for relevant examinations, to clarify the degree of the disease, and then under the guidance of the doctor to use medication for treatment.