My head hurts and the medicine the er gave me last week dosent help. thlenol wit!

My head hurts and the medicine the er gave me last week dosent help. thlenol with codine 3.?

if i go to the ER tonight, what will they do if my head is hurting very bad?? they gave me a CT scan 3 monthes ago

2 weeks ago
IT FEELS LIKE A PRESSURE AND MY HEAD IS HEAVY

A headache is an indication of something going on in the body. You could be coming down with anything from a summer cold to the flu.
This headache is just the onset. The ER probably didn't see anything just yet so they gave you something to aleave the headache, however they could have given you a couple of Ibuprofen instead of something so strong.

If you persist in these headaches then see your own doctor even after MRI's he'll give you their tests for migraines or send you to a neurologist.