OK, if you have someone in your life who is addicted to “Oxy” here’s a sad truth: They cannot stop on their own! The addict will tell you they will just stop when you confront them/him/her. I’m not saying s/he can’t, but I haven’t seen anyone yet in my practice who has been able to just stop, or wean him/herself off. That’s why it’s called an addiction, and that’s why there are detoxes to help.
Addicts, if they will accept the help, not only need to clean their systems of the drug, but need to break the cycle of using and all the associations to/with it. Especially if they accept help under duress. Even if they accept help gratefully, they have been hoping for some time that someone would notice and care enough to ignore the wheedling and pleading and manipulation and present them with an option to get help, to stop, to have another chance.
So while you are trying to figure out how to help the loved one in your life, do the most important thing first: take care of you. Get support for you; get help for you. Get enough sleep; eat right, and talk. Talk to someone who can help you work out the plan to confront, with love and compassion, and cope whether your loved one accepts help right away, or later, or never.