Thanks for writing your query.
Swelling is common in head injury
due to soft tissue injury
of the scalp
area. If your child is active with no abnormal behaviour, you should not worry much. Swelling will subside in due course of time. Paracetamol
can be given after discussing with your doctor for mild antiinflammatory effect.
You should feel concerned if following symptoms appear:-
1. Swelling donot subside
2. Excessive crying
4. Episode of seizures
5. Abnormal behaviour
6. Excessive lethargy
If the problem persists, you should get your child examined by your doctor and get a scan of his head done.
I hope this is helpful to you.