Epidural anesthesia delivers a combination of anesthetic (numbing) and narcotic medication into the epidural space outside of your spinal cord.
Yoga ball, balance ball, fitness ball, stability ball, birth ball -- whatever you call it, a yoga ball (large, sturdy, inflatable ball ranging in diameter from 55cm - 75cm) can be a helpful tool for comfort, relaxation, and positioning during labor.
Ah, the notorious "back labor." You may have experienced back labor yourself, but if not, you've probably heard about it from a friend/sister/mother who loves to talk about her experience with back labor.
Active labor is the period after early labor (when contractions are erratic and frequently stop and start) when your contractions become organized, follow a more distinct pattern, and cause your cervix to dilate from to approximately 8 centimeters.