The course of treatment for chronic atrophic gastritis with erosion depends on the patient’s specific condition. Those with a shorter course and mild disease will probably need 2 to 3 weeks of treatment, but if the medication is not effective, the disease is longer and more severe, it may take 6 to 8 weeks. Atrophic gastritis with erosion is a type of chronic gastritis with a longer course. The treatment of atrophic gastritis mainly relies on gastric mucosal protective agents, such as aluminum thioglycollate, bismuth potassium citrate, etc., which can repair the erosion while treating atrophic gastritis again. The course of treatment for chronic atrophic gastritis with erosion should depend on the specific situation of the patient. Those with a short course and mild disease need 2~3 weeks of treatment, but if the effect of drug treatment is not good, the disease is longer and more serious, it may need 6~8 weeks. Gastric mucosal erosion may be repaired in 6 to 8 weeks, but the mucosal atrophy to be reversed requires a longer process, and there is no clinical special drugs, some Chinese medicine, Chinese medicine may be effective, but the course of treatment may take more than half a year. In conclusion, the course of treatment for patients with chronic atrophic gastritis with erosion varies from person to person, and needs to be evaluated under the guidance of a professional physician, taking into account the patient’s own situation and condition.