I agree, very rarely are NSAIDs, Opiates, and other Analgesics(Things which reduce our response to pain) prescribed as a cure or supplement. Though they are sometimes. What is interesting is they don't know how Tylenol(Acetaminophen/Paracetamol) works fully, I mean they know opiates act on specific receptors and there is some amount of unknown about NSAIDs, they put Tylenol in everything and market it safe, but it wrecks your liver.
RE: Painkillers aren't a cure