To place the medicine, you will first sit on the edge of the operating room table with your legs dangling over the side. Your blood pressure and oxygen levels will be monitored. The lower part of your back is cleaned with a soap solution. This helps prevent infections. You will round your back like the letter “C” to open the spaces between your back bones. Next, a small dose of local anesthetic is injected into the skin to make you more comfortable during the procedure. This will feel like a poke and a burn. After this, most people only feel pressure. Once the correct location is found, the numbing medication will be injected, and everything will be removed from your back. You will then lie down on the table, a tube will be placed to drain your bladder, and your belly will be cleaned for surgery.