I literally JUST had a root canal Monday and it was CAKE compared to the pain I was feeling. I was in EXACTLY the same boat in terms of agony. I even encouraged DH to get out of the house one of the nights to spend time with his mate & sister just to get away from my whimpering...and then I end up ringing him 2 hours later in absolute tears because I was on the verge of cutting the tooth out myself! I had pain all down through my jaw and into my neck and throat...then up into my ear canal (felt like an ear infection)...and even onto the roof of my mouth and behind my right eye. In fact, I suspect it's why my right eye was bloodshot until after I started the antibiotics.
I ended up seeing a dentist on emergency Sunday morning who prescribed Amoxicillin and I also made an appointment Monday for an extraction (I thought then it was my wisdom tooth and it turned out to be the broken molar in front of it). When I went in Monday for the extraction, the dentist referred me to his other office (20 min away) as they had the capacity for NHS and it would cost less. We got there and the dentist there suggested we may be able to save the tooth (80% chance), and he would rather try since it's a functional tooth, rather than chance issues with ruining my bite.
I was terrified when I got back that afternoon and admitted I shyed away from dentists because of that fear. He assured me I wouldn't feel the pain and reminded me that any slight discomfort HAD to be better than what I had been going through the past few days. He told me to just put my hand up at any point if I needed a break (from holding my mouth open).
When he injected the novicane, he did it very slowly and carefully and I BARELY felt a pinch. He says that sometimes the people who feel pain are the ones who have such a bad infection and inflammation that the novicane is ineffective. The thing that helped me was that my husband was allowed into the room with me and I shut my eyes when he numbed me, so I didn't see it coming. I was shaking like a leaf!!
He finally said at one point during the procedure that if I hadn't felt anything up to that point, that I wouldn't feel anything from that point on in terms of any pain -- and he was so right. I think it helped as well that he was very nice and walked me through what he was doing each time, so I relaxed quite a bit. The whole thing took less than 40 minutes.
I go in next Monday for the crown and mine will be gold. (I blogged aboout it here:
http://meguk365.blogspot.com See day 139) I was quoted £198 and assured that the gold crown was the strongest and most durable. My brother-in-law had porcelean and his kept breaking on him. My mother-in-law has a gold crown on one of her molars and you can't even see it in the back of her mouth. Typically the porcelean ones are for the front moreso for cosmetic reasons and because you don't use your front teeth for heavy chewing.
So far I'm on day 3 and the worst pain since the root canal has been a tight sensation in my jaw from where I had to hold my mouth open. I use Ibubrofen (400mg) for that. Oh, and before I had the procedure, I was using Paramol 4x a day because it contained codeine, which helped me sleep (since nighttime seemed to be worse). I did like you and alternated with the Ibuprofen AND also had a scalding hot bottle of water...in fact I think I have a bruised eyebrow from sleeping on it, haha.
Good luck with everything and let us know how it goes!! xx