lower back pain - any suggestions?

So I'm having really bad pain in my sciatic - doesn't matter whether I sit or walk, and going upstairs occasionally will cause me to stop because i can't move anymore . Does anyone have any suggestion? The only OTC I'm supposed to take is Tylenol, but that has never worked on muscle pain with me. My back pain had pretty much subsided when I got down to 167 before the pregnancy - but now I'm at 184 and I have no way to prevent me from putting more weight on - I'm only about 18wks along. Any suggestions? I can't lay on my back now, and its on my left side so thats out of the question. If I sit for more than 15 minutes I have to get up and move because the pain is too bad. Any ideas?

I had horrible pain in my sciatic from my second trimester on. It would send waves of pain down my right leg. I never really found much relief from it. I have one of those pillow things that you can heat in the microwave and that helped more than Tylenol did. I basically just suffered through it.

Have you asked your doctor about it? He/she might have some suggestions. I wish I would have asked mine.

that sounds terrible - i had incredible hip pain in my last trimester with both of my pregnancies, I  found a heat pillow and water to relieve the pain - a swimming pool that is quiet so you can have a float around is ideal