You will be lying on your front. Your skin will be cleaned. A small needle will be used to inject some local anesthetic to numb the skin. This may sting for a couple of seconds. The tip of a needle will be placed next to the spinal nerve. Fluoroscopy, an XRay TV, is often used to guide the needle to the correct location. Some contrast dye may be injected to check the exact position of the needle tip using fluoroscopy. Then the medication will be injected around the spinal nerve, the needle removed and a small bandage placed.