DETROIT – Face sheet masks are marketed as a way to give your skin a quick boost or glow, but that’s not what’s happening to some customers. One mother is speaking out after her child suffered a serious reaction to using a face mask over the holidays. “After four minutes I started feeling, like, stinging so I just pulled it off and I’m just like, ‘Ow, my face really hurts and it’s really red,'" Nelle David, 9, said. The mask was a Yes to Vitamin C Glow-Boosting Unicorn Paper Mask. Nelle’s mother soon discovered the mask had several bad reviews online.