Welcome to Health care magic
I went through the history you have posted.
It seems your son had a injury because of fall and following it he is having bump on the head.
The bump is because of collection of blood in the layers of skin as a result of impact of injury. This will resolve slowly as the blood gets absorbed. The treatment is by the use of cold compression and anti-inflammatory drugs.
You need to watch out for signs of head injury
, headache, dizziness
, bleeding from nose or ears, loss of consciousness
following head injury....
If any one of the above are present you need to consult your doctor for further evaluation and treatment.
Do write back to me for further questions.
Thank you for writing to health care magic.