Fever, vomiting and diarrhea are symptoms caused by acute gastroenteritis and food poisoning, which may be related to pathogenic infection caused by eating unclean food or leftovers. This situation first need to pay attention to anti-emetic, anti-diarrhea to treat, you can take Si Mo Tang oral solution with injections of vitamin B6 injection for anti-emetic, diarrhea serious can take tannin yeast powder and with anti-inflammatory norfloxacin capsules to treat. During diarrhea, pay attention to more sugar, salt water, drink more thin rice, thin rice porridge or noodles, egg custard and other easily digestible food, do not eat cold, greasy food. Also do not eat too much at a time, so as not to increase the burden on the stomach and intestines and aggravate the symptoms of vomiting. In addition, it is recommended to put on fever patches and take acetaminophen extended-release tablets to reduce fever, and usually pay attention to ensure a light and hygienic diet, and make sure to wash your hands before meals to avoid illness from the mouth.