Go to the drugstore and buy some Zanfel. You can buy it over the counter. It is expensive, 30.00 plus dollars for a tube, but it works. Use it as directed. I am highly allergic to poison ivy and the shots and pills they give last about 24 hours for me and I am back to scratching like crazy. My granddaughter is a pharmacist to be and the drug store recommended it to her for her Dad and they told me about it. It is the best thing I have found. It won't go away over night, but it sure helps get rid of it and stop the itching when used as directed. It may take a couple of tubes if you have it really bad, but it does work. Good luck I certainly feel for you.