Thanks for being with HCM.
Though the area behind the temple and above ear is little delicate than elsewhere over the scalp, trauma that you suffered was not severe enough to cause any intracranial bleeding or laceration.
It has caused blunt injury
and swelling of local tissue along with chances of local hematoma
.This may take upto 4 weeks time to heal completely.
It will definitely heal in weeks time nothing more to worry about it.
As there was no history of loss of conciousness,vomittings,giddiness,seizures,bleeding from nose hence there is no need of CT scan
to rule out intracranial bleeding.
Local application ice and NSAIDS such as diclofenac
will help in symptomatic relief.
Hope you will get relief soon.
Any more queries and feedback is most welcome.
Wish you better health.
Dr.Maruti karale M.D.