Whiplash! Won't help you or the nurse's back either. The back swing and then bringing the handle forward fast enough to get a decent pop will really put a torque on those vertebra. Heres what you do: Pick up one of those paraffin warmer baths for hands and some coco butter. Put a sheet you can afford to ruin on the bead and lie down. Tie that ungainly mane of yours down or maybe even put it under a shower cap. Have your girl rub your back with the coco butter to get a reasonable coat all over your back. It doesnt matter if it soaks in. Just make sure all the skins coated once. When the wax is all melted have your girl plunge her hand in all the way and pull it out quickly. She needs to pull her hand out and blow on it. The first dunk is almost too hot to stand. After it cools about a minute dip real quickly again and pull out. By about the third dip she should be able to stand the heat long enough to leave it in. Now comes the fun part, she should dip her hand in and start painting the hot wax on your back. Once again, the first coat is almost too hot to stand. Itll take some communication and trial to find out how much you can take how fast. I hope you havent done anything to piss her off. After you get the first coat on just start building up layers over it. Anything that spills off will go on the sheet you put down. After about 30 minutes of this heat your back should be in heaven. Then you peel the whole thing off and put it back in the bath to melt. The coco butter you put on before helps the whole thing pop loose so you dont have to take skin and hair with it. You should feel like you did all five circles of ti chi without the muscle strain. This is my official perscription to you