The appearance of cold, fever, want to vomit phenomenon, is likely to lead to gastrointestinal cold, this time first of all should be fasting for more than 4 hours, wait until the symptoms of vomiting is relieved, and then gradually drink water, or eat thin rice paste or rice soup. In these two days, you should also eat simple and light food, easy to digest, and also take medicines to promote digestion, such as afternoon tea granules, eliminating accumulation and relieving cough granules, large hawthorn granules, etc. The effect is relatively good. For the symptoms of cold and flu, you also need to use antiviral medicines, such as black bean and chiao clear heat granules, cold and flu clear heat granules, Vitamin C Yin Qiao tablets and other effects are better. If the fever is particularly high above 38.5 degrees, fever-reducing medication is also needed for treatment, such as ibuprofen suspension. However, the phenomenon of cold, fever and vomiting, in addition to the gastrointestinal type of cold, viral encephalitis can not be ruled out. It is necessary to check the electroencephalogram to see if there is any abnormality in brain function. If there are abnormalities in brain function, hospitalization is needed for treatment.