Fever and dizziness in children are first considered to be caused by viral infection of the upper respiratory tract. If the body temperature does not exceed 38.5℃, physical cooling, alcohol bath, ice on forehead, hot bath, etc. can be used. If the body temperature exceeds 38.5℃ or more, you can take oral ibuprofen suspension and the antiviral drug busulfan oral solution. Another condition may also be viral encephalitis caused by viral infection, with fever, headache, dizziness, nausea and vomiting. In this case, you need to go to the hospital for routine blood tests, EEG, head CT, MRI, and in severe cases, lumbar puncture and cerebrospinal fluid tests to clarify the diagnosis.