I have an LESI injection tomorrow in my back, L4-L5. I'm starting to get nervous... I'm being sedated for it. Did anyone have to stay at the hospital after getting an LESI? they make it sound like that could happen. Should I bring a prepared overnight bag and leave it in the car just in case? all the instructions say regarding this is "DO NOT bring in an overnight bag or post-operative walker into the building during check in. Have someone bring them in after you have gone up to your room"