Dear hueyl 178 You have not mentioned the age of the child. What history you have given
it sounds like your son got collection of blood under the scalp
which is called haematoma
If you are not happy I agree you shoud see a Paeditric Orthopaedic Surgeon
. The effect of head injury
may be delayed. Some times this cause collection of bood under duramater (covering of the brain)
which is called subdural haematoma. There is another worry- depressed fracture
of the scall.
Your son should have X-ray skull MRI
scan of the brain to exclude those conditions. As regards
the haematoma of the scalp that can be aspirated aseptically. I wish your son gets speedy recovery.
Kindest regards Df. S.K.Mukherjee