Hi and Welcome to Healingwell,
Just a few quick questions that can help us figure out where you are in the "game" of migraines/headache...Have you been diagnosed with migraines? Is THIS headache different than the ones you are used to having (except the length)? What do you normally take for a headache, just the OTC you mentioned or are there other things including preventatives?
I would definitely see a doctor because it is not good to have any pain for 5 days! With migraines in particular, if you have head pain more than 72 hours, without 4 hours of relief you are at risk for additional problems.
Please let us know.
My suggestions when I get to the point where I have had migraine pain for days, I take medication prescribed by my doctor (hopefully without waiting until the head pain gets too bad), I feel ice pack is better on my head than heat, so I apply that...I try to rest in a dark room with little to no noise.
Things that help me, I make sure my hair is down to alleviate pressure on my head...I take a hot bath and try to relax and sometimes I will have my fiance rub my back/neck (hey, at least it takes my attention off my head!)
Hang in there and let us know how you are doing!