Which antibiotic is best for treating gastritis?

Having gastritis does not necessarily require antibiotic treatment. You may visit a hospital to undergo testing for *Helicobacter pylori* (H. pylori) infection. If H. pylori infection is confirmed, your physician may prescribe a course of antibiotics in combination with other medications, under their direct guidance. Specific treatment plans should be determined by your attending physician, as online consultations cannot comprehensively assess an elderly patient’s condition. During gastritis, avoid spicy and irritating foods; instead, consume easily digestible meals. Additionally, abstain from smoking and alcohol consumption, and consider using gastric mucosal protective agents as adjunctive therapy.