The evidence suggests that constant ongoing prescription of opioids for chronic pain isn't effective long term. There's been next to no study on the effectiveness of occasional use of opioids for flares of pain in episodic chronic conditions.
i.
There are actually decades or research on opiates and chronic pain, published in medical journals. and a quick search on google scholar shows hundreds of scientific studies that support the use of opioids in managing chronic pain here are just a few citations:
Randomised crossover trial of transdermal fentanyl and sustained release oral morphine for treating chronic non-cancer pain; BMJ 2001;322:1154; Laurie Allan directora,
Helen Hays, associate clinical professorb,
Niels-Henrik Jensen, head of departmentc,
Bernard Le Polain de Waroux, staff anaesthesiologistd,
Michiel Bolt, anaesthesiologiste,
Royden Donald, specialist anaesthetistf,
Eija Kalso, head
Long-Acting Opioids for Chronic Pain: Pharmacotherapeutic Opportunities to Enhance Compliance, Quality of Life, and Analgesia; American Journal of Therapeutics:
May/June 2001 - Volume 8 - Issue 3 - pp 181-186; McCarberg, Bill H. 1*; Barkin, Robert L.
chronic use of opioid analgesics in non-malignant pain: Report of 38 cases; Pain Volume 25, Issue 2, May 1986, Pages 171–186; Russell K. Portenoy, Kathleen M. Foley
Opioids and the Management of Chronic Severe Pain in the Elderly: Consensus Statement of an International Expert Panel with Focus on the Six Clinically Most Often Used World Health Organization step III Opioids (Buprenorphine, Fentanyl, Hydromorphone, Methadone, Morphine, Oxycodone; Pain Practice
Volume 8, Issue 4, pages 287–313, July/August 2008; Joseph Pergolizzi MD, Rainer H Böger MD,, Keith Budd MD; et al.
,
Long-term oral opioid therapy in patients with chronic nonmalignant pain Original Research Article
Journal of Pain and Symptom Management, Volume 7, Issue 2, February 1992, Pages 69-77
Michael Zenz, Michael Strumpf, Michael Tryba
Neuropsychological effects of long-term opioid use in chronic pain patients; Journal of Pain and Symptom Management
Volume 26, Issue 4, October 2003, Pages 913–921; Robert N Jamison, PhD, Jeff R Schein, DrPH, Susan Vallow, RPH, MBA, Steven Ascher, PhD, Gary J Vorsanger, PhD, MD, Nathaniel P Katz, MD
Effectiveness of Opioids in the Treatment of Chronic Non-Cancer Pain; Pain Physician 2008; 11:S181-S200; Andrea Trescot, MD1 , Scott E. Glaser, MD2 , Hans Hansen, MD3 , Ramsin Benyamin, MD4 , Samir Patel, DO5 , and Laxmaiah Manchikanti, MD
You're just repeating an old saying that came about when the drug war started and most scientific research that received grant money was aimed at demonizing opioids and saying they were not effective but since research money is allotted more based on merit instead of agenda nowdays its easy to find tons of science supporting opioids in long term pain managment.