Hi and thanks for the question,
You might need to go to the emergency room for two main reasons. first because you got an open wound from a metal. This increases the risk of getting tetanus
, and you will require anti tetanus serum to prevent this form the emergency room.
Secondly, clinical appreciation by the emergency physician is advisable. Sever post traumatic headaches
, depending on the clinical appreciation using specific scales might deserve a CT scan
. This however not the rule. But the consequences could be severe if done late in a situation which deserved it from the start.
In this case to be on the safe side, I suggest you go to the emergency room.
Thanks and best regards,