Fever and vomiting are most often caused by acute gastroenteritis, which is likely to be caused by eating something wrong or getting cold. At this time, you need to use drugs to promote digestion and relieve vomiting for treatment, if the adult, you can directly take morphine and gastroenterology for treatment, choose one of these two drugs can be. For fever symptoms, you need to use antipyretic drugs, body temperature greater than 38.5 degrees is recommended to take oral ibuprofen suspension. In the case of children, you need to fast for more than 4 hours, and then take Noon Tea Granules or Seven Star Tea Granules, which can effectively relieve the symptoms of vomiting. In addition, rubbing the child’s stomach clockwise can also provide relief. However, you need to take your child for an EEG examination to rule out fever and vomiting caused by viral encephalitis, and adults also need to check the EEG, as long as there is no abnormality in the EEG, all of them are fever and vomiting caused by acute gastroenteritis.