Perioral Dermatitis: The Breakout That Is Not Acne

Perioral dermatitis (POD) is a rash of small red or skin-coloured papules that clusters around the mouth, and sometimes the nose and eyes. It is often mistaken for acne or rosacea — and it is commonly made worse by the treatments people reach for when they see those comparisons. Understanding what it is and what caused it is key to treating it, because the most important first step is stopping the things that feed it.

• Distinguishing features: small bumps and mild scaling specifically around the mouth (a clear border of skin next to the lip is typical), burning or itching, without significant redness.
• The most common cause: topical corticosteroids (steroid creams) — even mild, OTC hydrocortisone used on the face. Other triggers include heavy moisturisers, fluorinated toothpaste, and some inhaled steroids (nasal sprays, asthma inhalers).
• The steroid-rebound paradox: when topical steroids are stopped, the rash temporarily worsens before improving. This causes many people to reapply steroids, perpetuating the cycle.
• Treatment: the most important step is stopping topical steroids. Initial worsening is expected and does not mean treatment has failed. Topical and oral antibiotics (tetracyclines) are first-line medical treatment. Azelaic acid and topical ivermectin also have evidence.
• Skincare minimisation: use the fewest, simplest products possible — fragrance-free cleanser, basic moisturiser if needed, SPF. No heavy creams, no acids, no retinoids until cleared.
• See a dermatologist if suspected — self-treating with OTC anti-acne products typically makes it worse.