My son has had a fever of 39.3 for about 3/4 days now, I contacted my doctor and was told unless he become very ill suddenly or was hard to waken then let things be, he said a fever has a job to do and the rules on a fever has changed, before they would try to bring the fever down but now they let it be and just treat with paracetamol. This is the 4th day Dec has been spiking and at the min it is back up to 39, I am just treating it with paracetamol every 4-6 hours. xx