3-year-old baby on fever without other symptoms, may be in the early stage of the disease, fever is mostly caused by bacteria, viruses or other pathogenic bacteria infections, can be physical cooling, medication and so on. 1. Physical cooling: you can properly remove more clothing, while using warm water to wipe the baby’s forehead, neck, armpits, groin and other large blood vessels, to increase heat dissipation. 2. Medication: If the body temperature exceeds 38.5 ℃, oral antipyretic drugs such as ibuprofen and acetaminophen can be taken as prescribed by the doctor, and the child’s mental reaction needs to be closely monitored, so as to be alert to the emergence of convulsions, respiratory distress and other manifestations. If the child continues to have fever, it is recommended to consult a doctor, improve the examination to consider whether there is a bacterial or viral infection, follow the doctor’s instructions to use antibiotics such as cefaclor, or antiviral drugs such as oseltamivir. If a 3-year-old baby has fever without other symptoms, you need to pay close attention to the child’s mental reaction, it is recommended to consult a doctor in time to avoid delaying the condition, the above drugs need to be used under the guidance of a physician.