Re-treatment for H. pylori usually requires a six-month interval. Treatment of H. pylori is usually chosen as quadruple therapy, taking a combination of two antibiotics, a bismuth agent and a proton pump inhibitor. The first treatment with anti-H. pylori is repeated 1 month after stopping the medication, and if H. pylori shows positive, a second treatment to remove H. pylori should be carried out. Clinical trials have concluded that testing at intervals of 1 month, 3 months, 6 months, etc. with the second dose of medication revealed that the highest efficiency of H. pylori clearance was achieved when H. pylori was treated again at intervals of six months. Therefore, if the test is still positive after the first H. pylori treatment, it is recommended that the treatment be repeated at an interval of six months. In addition, during the treatment of H. pylori, you should pay attention to a light diet, avoid eating cold, spicy, greasy and other stimulating foods. At the same time, pay more attention to rest, avoid strenuous exercise, do not be too tired, and keep a happy mood. During the period of incomplete cure, it is recommended to share meals with family members to avoid causing infections among family members. If the patient is diagnosed with Helicobacter pylori infection, it is recommended to go to the regular hospital in time, after clarifying the cause of the disease, targeted treatment under the guidance of the doctor, in order to reduce the adverse effects of the disease.