If your baby has a low fever for a week and then has another low fever, it may be caused by another infection, which can be treated by physical cooling, medication, and symptomatic treatment. 1. Physical cooling: reduce clothing and use warm water to wipe the baby’s neck, armpits, groin and other parts of the body. 2. Medication: If the body temperature exceeds 38.5℃, oral antipyretics such as ibuprofen can be taken under the guidance of a doctor. 3. Treatment: If the baby has a persistent fever, loss of appetite, poor mental health, etc., you need to consult a doctor in a timely manner, improve the relevant examination, to determine whether there is a bacterial or viral infection, etc., for targeted treatment. For example, low fever caused by upper respiratory tract infection, generally do not need special use of antiviral drugs. If the combination of bacterial infection, should follow the doctor to use cefixime, amoxicillin and other antibacterial drugs; if the influenza virus caused by the application of oseltamivir and other antiviral drugs treatment. If the baby has a low fever, parents should pay close attention to the child’s mental response, if abnormalities are found, it is recommended to consult a doctor in a timely manner, with the help of the doctor to clarify the cause of the disease, and targeted treatment or therapy.