The cause of this ongoing pain and why it arises...

The cause of this ongoing pain and why it arises spontaneously was not understood before. Now that we know the type of nerve fibers involved, and especially that it is the undamaged nerve fibers that cause this pain, we can examine them to find out what causes them to continually send impulses to the brain. This should help in the search for new analgesics that are effective for controlling ongoing pain.