Hailey Bieber is keeping it real! The model wants to be open with her fans and is sharing all the details about her skin condition.The 24-year-old celebrity revealed to her almost 31 million followers on Instagram, how she has been suffering from perioral dermatitis, explaining the symptoms and what triggers the common skin disease, including changes in the weather and beauty products.Hailey posted a series of Insta Stories and confessed that she has been battling perioral dermatitis “for a few