If you are thinking about having a surgery, you might want to think about this time and whether you are ready to endure a lengthy and very painful procedure.
You can probably see why surgeons would want to reduce the amount of pain involved in such a procedure, but if you do it for more than a few days, you might want to consider a different technique. Maybe you could wait until after the surgery to have it done; you might be surprised how easy it is to avoid a significant blockage, and it might relieve you of some pain but at the cost of some muscle function.