The appearance of a cold, fever, and the desire to vomit is likely to lead to a gastrointestinal type of cold. At this time, you should first fast for more than 4 hours, wait until the symptoms of vomiting are relieved, and then gradually drink water, or eat thin rice paste or rice soup. It is also necessary to eat simple and light food that is easy to digest during these two days, and to take drugs that promote digestion, such as noon tea granules, anti-cough granules and large hawthorn granules, etc. The effect is better. For the symptoms of cold, you also need to use anti-viral drugs, such as black bean curd and clear fever granules, cold and flu clear fever granules, vitamin C silver warp tablets, etc. The effect is better. If the temperature of fever is particularly high above 38.5 degrees, you also need to use antipyretic drugs for treatment, such as ibuprofen suspension. However, when there is a cold, fever and vomiting, in addition to the gastrointestinal type of cold, viral encephalitis is not excluded. It is still necessary to check the EEG to see if there are any abnormalities in brain function. If there are abnormalities in brain function, hospitalization is required for treatment.