If a follow-up test for Helicobacter pylori is positive after half a month of treatment, it indicates that the treatment was not successful, and Helicobacter pylori is still present. At this point, it is necessary to adjust the medication plan and treat Helicobacter pylori again. The specific medication methods and treatment duration should be used under the guidance of a doctor. Treatment of Helicobacter pylori infection requires the use of a bismuth-containing quadruple therapy for two weeks to eradicate it. Additionally, the diet should include an increased intake of fresh vegetables and fruits rich in vitamins and avoid spicy and irritating foods. Smoking and alcohol should be avoided. (Please follow the doctor’s prescription for medication use.)