Mine is prone to taking a fever when he gets the cold, which seems to be every 6 weeks or so at the minute. Frighteneing when you check him and he's up near the dangerous end of the temperatures. Thankfully the old staples of either calpol or baby nurofen seem to do the trick fpr him and make him comfortable and bring the temp down to safer levels again. He's not had a fever for a while now, fingers crossed. I mind halucinating when I had a fever as a kid, it was terrifying, definitely not something I want him to experience.