Tea is not recommended for patients with gastroenteritis. Patients with gastroenteritis are recommended to drink mainly plain water, not tea, including all kinds of tea, and also do not drink some other drinks, such as carbonated drinks or some drinks that replace tea. Because all these drinks may irritate the stomach and cause the patient’s uncomfortable symptoms to worsen. In addition, it is recommended to eat more soft, easy to digest fresh food rich in dietary fiber. Do not eat cold and irritating foods, and do not eat hard foods that are not easy to digest. Avoid eating pickled and smoked food. It is also recommended that patients should quit smoking and drinking, and pay attention to maintaining a healthy lifestyle. Reduce the stimulus to the gastrointestinal tract.