The child has a fever of 38.5 ℃, but asleep, first of all, we should observe the child’s mental state, if the child sleeps more peacefully, diligently measure the temperature, as long as to ensure that the body temperature does not exceed 38.5 ℃ can be. If the temperature exceeds 38.5℃, you can use a warm towel to wipe the child’s skin, which is helpful for reducing fever. If you can bring the temperature down, you can do so without waking the child first. If the temperature does not come down, you need to wake up the child, oral fever-reducing drugs for treatment, you can take oral ibuprofen suspension, acetaminophen suspension, the effect is good. If the child is over six years old, you can insert a fever-reducing suppository into the anus to reduce the fever of the treatment effect is also good. If the child is not sleeping very soundly, you need to get the child up immediately and use fever-reducing medication. If the temperature doesn’t go down even after taking antipyretic medication, you need to take your child to the hospital immediately.