The causes of long-term diarrhea, nausea and vomiting usually include improper diet or chronic gastroenteritis, etc., which require prompt medical treatment once detected. If you eat a lot of cold, spicy, stimulating, indigestible or unclean food, such as cold drinks, herbal tea, chili peppers, etc., these foods may stimulate the mucous membrane of the gastrointestinal tract, making gastrointestinal dysfunction, which causes gastrointestinal peristalsis to accelerate, and in severe cases, can lead to nausea, vomiting, diarrhea and other phenomena for a longer period of time. Secondly, when the gastrointestinal tract suffers from viral, bacterial or fungal infections, chronic gastroenteritis may occur, and its symptoms usually include low-grade fever, nausea, vomiting, abdominal pain, diarrhea and other phenomena. Diarrhea, nausea and vomiting is recommended to timely hospital treatment, under the guidance of the doctor standardized diagnosis and treatment.