If you're a woman with adult acne, you likely know all too well how difficult it is to treat. But if you're among the 80 percent of women who see no benefit from the commonly prescribed antibiotic treatments, this could be a sign of a hormonal imbalance.
Dr. Kanade Shinkai, a dermatologist at the University of California San Francisco School of Medicine, advises women with irregular periods or other signs of hormonal disorder and who have acne to discuss their symptoms with their dermatologist.