Facial atopic dermatitis flare-ups are ultimately caused by a compromised skin barrier, explains Kiran Mian, DO, FAAD, a medical and aesthetic dermatologist at Hudson Dermatology and Laser Surgery.

“Our skin is a protective and selective barrier that keeps the good stuff in (like moisture) and the bad stuff (like irritants and pollution) out,” Dr. Mian says. “People with atopic dermatitis are missing certain proteins in their skin that are involved in maintaining the integrity of their skin barrier.”
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