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McKenze Messman: Allergic to Almost Everything

McKenze Messman looks like a typical teen from Lincoln, Nebraska, but she's far from it. Diagnosed with three severe conditions during her freshman year of high school, McKenze has allergic-like reactions to a range of hundreds of triggers. In a PeopleTV exclusive, 17-year-old McKenze let us into her world and opened up about her determination to fight for her life.

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