If your baby has a fever at night, you have to measure the temperature first, you can usually measure the axillary temperature, if the temperature is greater than 38.5 ℃, you have to do antipyretic treatment. There are several ways to reduce fever: 1, physical cooling, you can use warm water to take a bath, to help dissipate the heat, to achieve the effect of temperature reduction. 2, oral administration of antipyretic drugs such as melphalan, ibuprofen, etc., through the medication to reduce fever. 3, you can achieve the effect of fever reduction through antipyretic medication, as well as commonly used antipyretic patches, pasted on the forehead or the neck, the root of the thighs, popliteal fossa, and other large blood vessels, to help dissipate the heat. At the same time, supplemental water, do not use too thick clothing wrapped, is conducive to heat dissipation.