10 Unusual Allergic Reactions Revealed

There was redness and itching, some blisters and oozing. Something wasn't right with Dr. Michael Rosenthal's patient, a woman in her mid-50s. The inflammation around her scalp pointed to some type of allergic reaction, but the patient wasn't sure what had caused it. "Have you put anything new on your hair or head?" Rosenthal asked her. She said she had used hair dye, but had discounted the dye as a source of the problem because the symptoms didn't arrive until more than a week after she had...Full Story
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