At first Bennie Chung, a 23-year-old woman from Hong Kong, had no clue why her skin appeared to be so sensitive, flaring up from time to time. She thought it was a condition she inherited. Her 50-year-old mother, in fact, had the same red face.
But as the condition worsened, she knew she had to find some answers. "We thought we might be suffering from an allergy," said Chung, who normally had very fair skin. "We bought a lot of different cosmetics to fight against the way we looked."