Children with a fever of 38.3 degrees may be related to viral or bacterial infections, can be taken to physical cooling, parents should be appropriate to the child to supplement the water, can also be warm water baths, indoor ventilation and other ways to cool down, if necessary, timely medical treatment. 1. Hydration: It is recommended that parents give their children water when they have a fever of 38.3 degrees to fully replenish the water in their bodies and avoid dehydration due to fever and sweating. 2. Warm water bath: When the child has a fever, it is recommended that parents use warm water to wipe the child’s body, which can help the child cool down. 3. Indoor ventilation: Parents are advised to open the doors and windows of the child’s room to ensure indoor air circulation. If a child has a fever of 38.3 degrees, parents should give the child a timely cooling, if necessary, you can take the child to the hospital, follow the doctor’s instructions for treatment.