A rash appears around the mouth. It looks like acne, so it gets treated like acne — and it does not improve. Then a cortisone cream helps for a week, and everything gets worse when it stops. Perioral dermatitis is an inflammatory rash of the facial skin that most often affects women between the ages…
In dermatology, there’s a phase where healing looks exactly like a breakout. Most people quit right there. You started a new retinoid two weeks ago, full of hope. Now your skin looks worse than before you began — more spots, more small bumps, and a creeping certainty that you’ve made everything worse. Before that expensive…
For decades, dermatologists dismissed the link between diet and acne. The evidence has quietly made that position impossible to hold. Here’s what actually holds up.
Why does adult acne persist into your 30s and 40s? A dermatology-informed guide covering what’s actually happening beneath your skin, the four acne types, common myths, and treatments that work in 2026.