I have had hives since September (first time in my life....I have had bloodtest, which showed no abnormal activity, and my thyroid is fine. Now I am doing the patch thing to see if I am allergic to soaps, latex,hair dye, etc. I am 72 years old and hope and pray I do not have CIU, for I do not want to take the risk of the monthly injections. Any input for relief of itching?