Flushing that never quite fades, cheeks that burn in warm rooms, redness that makeup no longer covers: persistent facial erythema is one of the most common reasons patients visit Cheongdam dermatology clinics. Treatment only works when the cause is identified first. GLOW Dermatology explains the main culprits and how doctors tell them apart.
Vascular causes: rosacea and telangiectasia
The most frequent source is vascular: capillaries that have dilated and no longer constrict properly. Rosacea, which brings recurring flushing with burning and sometimes pimples, and visible broken vessels (telangiectasia) both fall here. Triggers like heat, alcohol, spicy food and temperature swings make episodes worse, and over years the redness becomes fixed rather than episodic.
Barrier and inflammation causes
A damaged skin barrier, whether from over-exfoliation, harsh cosmetics or chronic dermatitis, leaves skin thin, reactive and diffusely pink. A special and serious case is steroid-induced redness from long-term topical steroid use, which rebounds when the cream stops. Seborrheic dermatitis adds flaky redness around the nose and brows. These inflammatory types need barrier repair and medication, not just lasers.
How diagnosis separates them
The dermatologist reads the pattern: where the redness sits, whether it flushes or stays, what triggers it, what products and medications preceded it. Skin examination distinguishes visible vessels from diffuse inflammation. The distinction matters because vascular redness responds to vascular lasers, while inflammatory redness needs the inflammation treated first, since lasering an inflamed barrier can worsen it.
GLOW Dermatology in Cheongdam treats facial redness with cause-based protocols, including vascular laser such as V-beam, barrier repair and medication, and consults international patients. If your redness has lasted months, a diagnosis visit is more useful than another soothing cream.