Suggest Treatment For Allergic Itching On Body

I have previously had surgery a week ago for a cyst on my right ovary. I forgot to tell the doctor that I am allerrgic to dermabond. I have been having severe itching every since. I have tried Benadryl cream and hydrocortisone cream which made the itching worse. I have tried oral Benadryl which made my sinus flare up and had me congested afterwards. I have tried Vistaril which made me sick with nausea and vomiting. I have also had a steroid shot which helped for a couple of hours but the itching has came back. I am currently taking a Medrol dose pack and Zyrtec and I am still itching. I have made an appointment with an allergy doctor but could not be seen until the 19th. What can I do to stop itching, I have scratched so much that I am bleeding and the medications are not helping.. please help!!!