Lots of us experience allergies, whether it’s sniffles from pollen or hives from cat hair, but there are a few bizarre allergies that cause us to wonder why they happen and how people deal. Allergist Dr. Manjul Dixit, a physician specializing in the diagnosis and treatment of allergies, says she’s seen a lot of allergies and reactions, and little surprises her anymore. So, we asked her to shed some light on the world's weirdest allergens.