Find the relevant section of the forum, and you should see a button at the top left of your screen that says "New Thread." That's at least how it's displayed on my device, but look for that button.
I'm a new member here but a longtime lurker. I may be able to direct you to the proper section. Your question is about methadone. In what respect? Detox? Potentiation? Tapering? Dosage?
Once we figure that out, we should be able to get you some help for your question.