3 months baby fever 37.8 ℃ belongs to low fever, may be caused by cold, may also be due to improper eating caused by indigestion, do not need to give oral antipyretic drugs for treatment, can be given to the following physical cooling: First, give antipyretic stickers on the forehead, vertebrae points, neck, limbs and other parts of the body to lower the body temperature, so as to play a role in reducing fever. Secondly, warm water can be used to wipe the children’s neck, limbs, armpits, and groin and other parts of the repeated times, so as to reduce the children’s temperature. Third, if the indoor temperature is okay, not cold, you can also give the child a hot bath for antipyretic treatment, and at the same time, we should give the child appropriate to drink more water, feed the water, is conducive to the treatment of antipyretic.