"How long will we set aside while our family told these lies that they can't deal with a little pain? You have to give yourself time to heal, not dope it up so you don't feel!" ~Anti Opioid Crusader (grammatical errors are left unchanged to help characterize the credibility of the source)
Such statements demonstrate the scientific illiteracy of such an attitude. Such individuals are speaking purely from superstition or ignorance; as they have no actual understanding of how pain and the human nervous system works. So, why do we treat the symptom of pain in itself?
Pain retards the body's healing process. Pain itself elicits additional pain. When pain over an extended period is not supressed (and instead is simply 'dealt with'), pain circuits of the sensory nervous system undergo an adaptive neuroplastic process of potentiation, causing the pain-flow to continue even after the source of the pain has healed. At this point, the pain has become a serious chronic disorder of the central nervous system; Researchers now classify this as a disease state, which by this time has become completely unrelated to the original condition or injury.