Sciatica is a disease that occurs due to inflammation, compression, or irritation of the sciatic nerve. The condition mostly results in moderate-to-severe aches and discomfort in your legs, buttocks, and lower back. Generally, the condition leaves after 4 or 6 weeks. However, some severe cases may last longer than 2 months. Are you experiencing persistent pains in your sciatic area? This article will discuss possible reasons why your sciatica is not going away.