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10 things you didn't know you could be allergic to

You've heard of peanut and pollen allergies, and shampoos that make your skin break out in hives. But almost anything in your environment can be an allergen, says Dr. Matthew Zirwas, a contact dermatitis expert at Ohio State's Wexner Medical Center -- "whether it's something that's very synthetic or man-made... or it's something totally natural like a botanical extract." <!-- --><!-- -->
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Click through the gallery to see 10 things you didn't know you could be allergic to.

You've heard of peanut and pollen allergies, and shampoos that make your skin break out in hives. But almost anything in your environment can be an allergen, says Dr. Matthew Zirwas, a contact dermatitis expert at Ohio State's Wexner Medical Center -- "whether it's something that's very synthetic or man-made... or it's something totally natural like a botanical extract."

Click through the gallery to see 10 things you didn't know you could be allergic to.