I have oxycodone allergies but still want it. Help!?

Bad idea. There are many other options to treat your pain. If you really have an allergy (not just itching or nausea) you are risking your life by taking oxycodone.
Narcotic addiction. It appears to me that you might addict to oxycodone. If you know you are allergic to oxycodone and still want it, you have addiction issues. Please seek help from addiction specialist.