Amoxicillin can treat gastritis, gastritis is a common type of inflammatory disease, the treatment of gastritis requires a combination of drug therapy, but also with regular dietary treatment, in order to achieve a good therapeutic effect, the treatment of gastritis commonly used drugs are the following three categories: first, antibacterial drugs, commonly used is levofloxacin and amoxicillin. Second, drugs that inhibit stomach acid, commonly used are omeprazole and ranitidine. The third, the gastric mucosa protective agent, the representative drug is alkaline bismuth salicylate dry suspension. The treatment of gastritis requires the combined use of these three types of drugs, while the diet should be careful not to eat spicy, irritating food, do not eat hot food, do not eat raw and cold food, and not overeating, overeating, to eat some easily digestible food, with drug treatment, in order to get better treatment results.