Thanks for the query
in a child less than 2 year old following fall needs a neuroimaging
. If trauma is associated with loss of consciousness
that is uncertain or very brief( few seconds only), irritability( now resolved), behavioral changes if any, scalp hematoma( particularly nonfrontal), the risk of clinically important traumatic brain injury
is approximately 1 percent for a child with at least one of these criteria. Multiple or worsening symptoms or signs likely put the child at greater risk than an isolated finding. If immediate CT is deferred for these patients, we suggest observation for four to six hours to ensure no progression of clinical findings that warrant CT.
So as even after 12 hours if there is no deterioration of condition there is no need of neuroimaging.
Apply Thrombophob gel over the area this will help in reducing the size of swelling. A skull radiograph may be neede to rule out any fracture
I hope this answers your query well
Wish you and your family good health