Babies do not have a fever during the day and fever at night may be related to infection, teething, etc., and need targeted treatment, such as anti-infection, antipyretic treatment. 1. Infection: baby daytime fever at night fever may be associated with bacterial, viral, mycoplasma and other infections, baby daytime play activities are frequent, it is not easy to find fever. Night fever, to detect the body temperature, such as body temperature does not exceed 38.5 ℃, can take physical ways to cool down, such as warm water bath. If the temperature exceeds 38.5 ℃, you can give your baby drugs such as ibuprofen to reduce fever. In addition, we need to actively find the pathogens that cause the baby’s infection, relative anti-infective treatment, such as viral infections caused by the oral antiviral solution can be taken to treat the presence of bacterial infections can be taken to alleviate the presence of antibiotics such as amoxicillin, mycoplasma infections can be taken to azithromycin and other medications, and so on. 2. Teething: baby daytime fever at night fever may be in the teething period, the night activity is reduced, drink less water, the body’s immune system is relatively low when the cause of fever and other symptoms. At this time belongs to the physiological fever, generally not more than 38.5 ℃. Parents can temporarily observe, feed the baby more water, wipe the baby’s body with warm water appropriately. The baby does not have a fever during the day and fever at night may have other reasons, parents are advised to take their babies to the hospital in a timely manner, the use of medication needs to be guided by a doctor.