Has anyone experimented with opioids?

Has anyone tried opioids like morphine, tramadol or oxycodone for Hell's Itch?

I know that opioids can cause an itching sensation on your skin. I also know that that itch is NOTHING like HI... it's more of a soothing itchy feeling that feel nice to scratch, instead the jolts of extreme tingling electricity that happen just below your skin during HI.

I'm asking because I have some extended release morphine pills, but I don't want to make the itching worse than it is at the moment.