My 7 month old baby fell out of his walker last week and got a bang on his forehead. When I picked him up I noticed a dent on his forehead but swelling quickly appeared and the dent seem to go away. He cried for about a minute and then started playing and seemed fine. We kept a close eye on him for 48 hours and he was fine. However, now the bruising and swelling has gone, I notice the dent is back. Will this ever go away. When I press firmly on it I can't feel any dent in the actual bone