The treatment for a two-year-old baby with a fever of 37.5 includes observation, physical cooling and medication, as prescribed by the doctor. 1. Observation: applies to the absence of other symptoms. A two-year-old baby with a fever of 37.5 belongs to a low fever, and during the observation period, you can give the baby the right amount of water, and also lower the body temperature. 2. Physical cooling: you can use some physical methods to achieve the purpose of lowering the baby’s body temperature, such as in the baby’s forehead, neck and armpits and other parts of the line warm water bath. The temperature of the surrounding environment should not be too high, and the baby should not wear too much clothing, which is not conducive to the baby’s heat dissipation. 3. medication: if the baby’s temperature continues to rise, more than 38.5 degrees Celsius or accompanied by obvious discomfort, can be used under the guidance of a doctor, acetaminophen or ibuprofen and other drugs for treatment, can play a role in relieving fever and analgesia. If the two-year-old baby fever is mostly related to upper respiratory tract infection, urinary tract infection and other factors, it is recommended to consult a doctor in a timely manner in order to clarify the cause of the disease and standardize the treatment.