Babies with a simple temperature of 37.3°C usually do not need special treatment, so observe what the possible accompanying symptoms will be next. If there is nothing abnormal, drink some water regularly and reduce the clothing appropriately. Pay attention to the temperature of the environment, the amount of clothing, as well as the baby crying, violent crying, breastfeeding, naughty, forceful activities when the temperature can be a little higher. If, in addition to 37.3℃, there are other symptoms, such as nasal congestion, runny nose, sneezing or diarrhea and other suspected infections, then the temperature needs to be observed very closely and dynamically, and then if the temperature continues to rise, reaching 38℃ or 38.5℃ or more, it is considered that there may be an infection. In this case, treatment of the original disease and active anti-infection must be the main focus, so as to fundamentally stabilize the body temperature. However, if the temperature really rises from 37.3℃ to 38.5℃, it may be necessary to use some antipyretic drugs, such as acetaminophen or ibuprofen, and at the same time to give the baby to drink water regularly to ensure the intake of fluids, which can help the recovery of the body temperature.