When patients have bad breath symptoms, they should not blindly take omeprazole enteric capsules by themselves for treatment. It should be clear that the bad breath is caused by stomach diseases before taking omeprazole. In most cases, bad breath is caused by oral diseases, such as dental caries, gingivitis, periodontal disease, etc. It is recommended that patients should consult a stomatologist if necessary, and only after oral diseases are clearly ruled out can they be further examined by electronic gastroscopy to help clarify the presence of gastric diseases, and also by carbon 13 or carbon 14 breath test to understand the presence of H. pylori infection. If the patient has completed the above tests, it is clear that the symptoms of bad breath caused by stomach diseases, you can take omeprazole enteric capsules for treatment, the specific medication needs to consult a specialist.