I had a similiar reaction codiene and i took it again a couple weeks later, just 2 Tylenol 4's which is 120 mg of codiene, and i had an anaphylactic reaction...the relevance of this is that once you develop a slight allergy to something, and you keep ingesting it, it gets worse everytime. You could develop it to the point of a deadly allergic reaction, The lip swelling is the first thing that happened when I went into anaphylactic shock so be very careful. If you need some help with the withdrawals from oxy talk to a doctor, in some medicated detoxs they give you benzos, just .5 or .25 of ativan can help, so maybe talk to a doctor or look into that more?