2-year-old baby 37.5 ℃, belongs to the low fever, can use physical cooling symptomatic antipyretic, dynamic monitoring of body temperature, and clarify the causes of fever, such as respiratory tract infection, such as bacterial infection, the need for anti-infective treatment. For 2-year-old babies, a temperature of 37.5 ℃, belongs to fever, low fever, this time can use physical cooling, such as warm water wipe forehead, and dynamic monitoring of body temperature, such as temperature continues to rise, over 38.5 ℃, then need to oral antipyretic drugs (such as ibuprofen) to reduce fever. The above treatments are symptomatic treatments, to clarify the causes of fever (e.g. acute upper respiratory tract infection, tuberculosis) and to carry out causative treatment is the focus of the treatment, such as bacterial infection caused by acute upper respiratory tract infection, need to use antibacterial drugs (e.g., cefaclor) anti-infective treatment. For children with tuberculosis, low-grade fever, recurrent, accompanied by night sweats, cough, etc., after the diagnosis is clear, anti-tuberculosis treatment with isoniazid and other drugs is needed. If juvenile idiopathic arthritis, the above fever may occur, presenting spasmodic fever, often fever lasting a long time, accompanied by arthritis, rash, etc., the treatment needs to use non-steroidal anti-inflammatory drugs (such as ibuprofen), methotrexate and other drugs for treatment. All of the above drugs should be used under the guidance of a physician, and it is recommended to actively consult a specialist for treatment.