Son bumped his head twice?!

Son bumped his head twice?

my son who is almost 17 months old banged his head last sunday at universal studios...it became a bruised bump outside his head...I took him to first aid and they said the bump is better out than in so he will be fine, they gave him tyneol and tried to give him ice and refused...the swelling went down the next day and it was just a bruise...then yesterday, he hit the same spot when he fell into the cermaic boot i have(it's a decoration) this time he got a bigger bruise and 1 cut like a tiger slashed him across his forehead....the cut is now covered in dried blood...a lot of my friends say take him to the doctors but he fell and he is playing and fine. I know my son better than anyone else..what do you think and what would you do?

I would clean up the blood, put neosporin on it and cover it with a bandage, it is less likely to scar that way. As long as he is behaving in a normal fashion I wouldn't worry too much about it, kids that age have very durable and flexible skulls.
If he is acting unusually sleepy, or if his behavior changes suddenly, check his pupils, to make sure they are equally reactive to light. If there is anything obviously different about him then it is time to take him to a doctor, you are right you know your child better that anyone else, follow your instincts.