Help.. I ve had an allergic reaction to hair dye. I m itchy all over my body but only break out in a rash on my face which consists of red blotchy hives, red-ish veins through out my face and nose. My ears also turn beat red. I ve spent hundreds of dollars on emergency and doctor visits which always tell me the same thing. its roceasa . Which to that diagnoses i say bull cramp. This has been going on since Thanksgiving. Not once has the dermatologist done an allergy test on my, they just keep perscribing me anti itch medication and topical creams which are not helping me at all. I ve read about Doxycycline which sound like something that can possibly help me. Am I wrong?