Sciatic nerve pain relief begs for good posture and core tone because when all else fails well-aligned bones and a solid balanced musculature is a good defense against chronic pain.
The sciatic nerve is the longest nerve in the body and provides a good deal of the energy that goes to the legs. Starting as nerve roots in the lower spine that move down and meet behind the piriformis muscle to form the sciatic nerve that runs down to the knee before splitting and continuing down to the foot as the peroneal and tibial nerves. Sciatic nerve pain is usually classified as sciatica or piriformis syndrome. Sciatica is the impingement or compression of one of the nerve roots, and piriformis syndrome is when the piriformis muscle in spasm presses on the sciatic nerve.
Sciatica is a symptom rather than a thing (disease?) and can occur due to any number of conditions such as herniated discs, stenosis, spondylosis, etc. Some of these spinal issues are reversible, such as herniated discs, while others, like spondylolisthesis—the displacement of a disc at top and bottom—are much less likely to change. But they can all be supported.
The correct alignment of the bones allows for the freest pathways for the nerves to make their way through the body. In order for the bones to align properly the muscles that surround the bones need to have balanced tone.
A lot of chronic pain and suffering is due to nothing more than poor posture and imbalanced muscle groups that disrupt the free flow of energy in the body in some cases but actually damage nerves in other more extreme instances. Sciatic nerve pain relief is not likely to happen without postural changes and the development of a balanced musculature.
This goes double for people with conditions like the aforementioned spondylolisthesis. If you have an issue with your spine that you have to “live with” you owe it to yourself to do all you can to develop good posture and solidity the muscles that surround the spine and pelvis to provide the best possible stability against the natural shocks of living.