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More pollen, more allergies: Personalized exposure therapy treats symptoms

04:24
The iconic cherry blossoms in Washington, D.C., reached their peak bloom on March 28 this season, earlier than most years. Mild winters lead to a longer pollen season and that is bad news for allergy sufferers. (Getty Images)
The iconic cherry blossoms in Washington, D.C., reached their peak bloom on March 28 this season, earlier than most years. Mild winters lead to a longer pollen season and that is bad news for allergy sufferers. (Getty Images)

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