Hello, Thanks for posting. I feel that you should continue with the ibuprofen and observe for any dizziness, headache, vomiting and any other abnormality that will worry you. Kids hitting their heads on something occurs daily and usually a little bump can be formed which disappears as you must have seen. So you need not worry. Now depending on the severity of the hitting, you can then take the kid to an ER for evaluation. But generally moderate to severe head injury usually occurs with an initially loss of consciousness. Your kid is probably having a small scalp contusion which will get better as time goes by. A couple of days will be ok. Hope this helps