question: Hello, my 3 and a half year old son hit his head against table edge about 45 mins ago. There was a slight dent which came up a few minutes later to become a little bump. I held a bag of iced peas to his head on and off for about 15 - 20mins and the swelling has gone down significantly. He seems fine and is dancing and singing to his favourite tv characters now.  Should i still be worried?.