Three and a half year old baby fever, can be combined with the actual situation, choose whether to cover the quilt, most of the cases do not need to cover the quilt. 1. need to cover the quilt: due to the fever caused by cold, the child may appear limbs end cold condition, this time the peripheral circulation state is not good, can be appropriate cover the quilt. 2. do not need to cover the quilt: fever when the body temperature is high, give the child cover the quilt is more likely to lead to the child’s body temperature rise is not conducive to the dissemination of heat in the body, when the child in addition to the high body temperature, there is no performance of chills, this time is not afraid of the cold, you can not give the child cover the quilt. Three and a half year old baby fever, you can combine the actual situation to choose to cover the quilt, but be sure to take the baby to a professional pediatric hospital, to find out the specific cause of fever, and timely treatment.