I would ask my doctor how they recommend me discontinuing my use of the painkillers. WD is no fun at all but if you are working with a Dr. they will make it manageable.
Congrats on your sobriety and desire to quit. Be sure and keep in mind that using in one form or another is just a symptom of a greater issue. There is always a why behind getting hooked on a substance.
I wish you the best and you are doing the right thing by asking for help.