[embee]

Yeah, "back" here too I'm afraid. As you describe, lower back/sciatic nerve issues, I get the worst probs from sitting, especially in the car.

Following researching and advice from others, regular gentle exercise is the best route, walking seems to help me a lot. The other exercise is laying on your back on the floor, knees bent, roll legs from side to side.

As others say, ibuprofen reduces inflammation, paracetamol helps reduce pain and tension, but don't rely on them alone to fix it, they won't.