Baby’s fever and cough with vomiting are common in the following cases: a. Gastrointestinal colds caused by viral infections, which manifest both as respiratory symptoms of fever and cough, and as digestive symptoms, such as vomiting and loose stools. Second, the upper respiratory tract infection, baby fever digestive enzyme secretion is reduced, if the normal diet, but the gastrointestinal digestion can not appear vomiting. Upper respiratory tract infections cause irritating cough due to inflammation and cause reflex vomiting. Third, fever and cough caused by bronchitis and pneumonia, the symptoms of infection are more severe and toxic intestinal paralysis occurs, which is manifested as vomiting, abdominal distension and abdominal pain. If severe pneumonia develops hypoxic encephalopathy, vomiting, headache, irritability, and even convulsions may also occur.