Common causes of vomiting and fever in five-year-old babies include poor diet, common cold, acute gastroenteritis, intracranial infection, etc. Different treatments need to be given according to different causes, such as general treatment and medication. 1. Poor diet: If a five-year-old baby eats food contaminated by bacteria or the indoor temperature is too high, vomiting and fever may also occur. It is recommended that the baby’s diet should be light, drink plenty of water, and ensure that the indoor temperature is appropriate, and the baby can gradually return to normal after removing the relevant factors. 2. Common cold: If the common cold is caused by the five-year-old baby vomiting, fever, if the baby’s body temperature is not more than 38.5 degrees, you can warm water to wipe the body to cool down. If the baby’s temperature exceeds 38.5 degrees, oral ibuprofen and other drugs to reduce fever. 3. Acute gastroenteritis: this disease can also appear vomiting, fever symptoms, if the baby’s body temperature is not more than 38.5 degrees, can be warm water to wipe the body and other cooling. If the baby’s temperature exceeds 38.5 degrees, oral ibuprofen and other drugs to reduce fever. Take care of the baby’s fluids, rest, and eat a light diet. Singing intracranial infection: such as meningitis, encephalitis, etc., can cause vomiting, fever, etc. If there is a bacterial infection, you can take cefixime and other drugs to fight infection, but also use glycerol fructose, mannitol and other treatments to lower the cranial pressure. Five-year-old baby vomiting, fever exclude physiological factors, should be timely to the hospital, identify the cause of the disease, follow the doctor’s instructions for treatment. The above drugs need to be used under the guidance of a doctor.