Darling has a fever suddenly lasting 3 days how did be frightened to do

The baby is frightened and causes fever. First, parents should appease the baby's frightened mood. Secondly, according to the baby's fever temperature, choose the appropriate method to cool down. If the child's temperature is above 38.5 degrees, it is necessary to give the child antipyretics in time and take appropriate physical methods to cool down; if the child's temperature is below 38.5 degrees, choose the appropriate physical method to cool down.