Hi, I was on opioids for 13 years for pain, I had to stop taking them because of terrible itching inside my body and swelling. How long should I wait its going on a year now and I m still itching and swollen. From my neck to my groin, If this doesn t stop; I was also highly allergic to the metal in my back surgery when the cages and screws were taken out the itch stopped, But its back wandering if the metal spacer s could be causing this itching also. I m trying to keep my sanity. Thanks for listening. It also feels like my throat is closing up and hard to breath.