The vaccine can be given when the symptoms of indigestion are mild, but is not recommended if the symptoms are severe. If the patient’s symptoms of indigestion are mild, with only mild diarrhea and bloating, and the patient is in good spirits, he or she can usually be vaccinated and the vaccination will not affect the disease. If the symptoms of dyspepsia are more serious, such as severe diarrhea, dehydration, bloating, vomiting, acid reflux, or even high fever and chills, vaccination is not recommended to avoid aggravating the symptoms of the disease. In this case, priority should be given to the treatment of indigestion, and the vaccine should be chosen after the body has returned to normal. If symptoms of indigestion occur, it is recommended to go to a professional hospital in a timely manner, to clarify the cause of the disease and then under the guidance of the doctor for treatment.