If you're dealing with sciatic nerve pain, there's a good chance you're looking for some relief. Essential oils may be able to help. Sciatica is caused by inflammation or compression of the sciatic nerve, which runs from your lower back down through your legs. This can cause pain, numbness, and weakness in your legs and back. Essential oils are a natural way to reduce inflammation and pain. Read on to learn about essential oils that may help relieve sciatica pain.