Cimetidine, ranitidine, famotidine, etc., is not commonly used, commonly used is the proton pump inhibitor, such as omeprazole tablets 20mg, daily breakfast and dinner half an hour before the oral, or lansoprazole tablets 15mg, daily morning and evening meals before half an hour before the oral, to protect the gastric mucosa: pectin and bismuth capsule 3 capsules per day, 3 meals before the oral half hour before, or gastric mucous membrane Half an hour before oral, or gastric ulcer spirit oral liquid 10ml daily 3 meals half an hour before oral, choose the above two drugs, the course of treatment for one month, the eradication of Helicobacter pylori: Clarithromycin tablets 2 tablets 3 times a day orally, metronidazole tablets 2 tablets 3 times a day orally (after meals), the course of treatment for half a month. You can use four-consecutive therapy: lansoprazole tablets, bismuth pectin capsules, metronidazole tablets, clarithromycin tablets. (If eradication of Helicobacter pylori negative, do not use metronidazole tablets, clarithromycin tablets)