While treating wounded American soldiers during World War II, Henry Beecher ran out of pain-killing morphine. Desperate, he decided to continue telling the soldiers that he was giving them morphine, although he was actually infusing them with a saline solution. Amazingly, 40 percent of the soldiers reported that the saline treatment eased their pain.
Source: www.brainfacts.org
This just shows the power of the mind to control pain and how The Possible Mind could help you control your discomfort.