14/06/2026
Acne vulgaris or rosacea?
Both may present with pustules on the face. Both are common.
The oestrogen dominant acne (especially of perimenopause) can look similar to pustular rosacea (which can also appear around the same life stgae). In the first consultation, the distinction is not always obvious.
What they share:
Erythema - which can difficult to distinguish on pigmented skin. A tendency to flare with certain foods, stress, and hormonal shifts. A significant impact on quality of life and confidence. Both may have pustules or nodules.
Where they diverge:
Acne vulgaris involves the pilosebaceous unit. Comedones are a defining feature. Nodular and cystic lesions may be present. Distribution may follow sebaceous density: central face, jawline, chest, and back.
Pustular rosacea does not involve comedones. This is the most useful single distinguishing feature. The pustules in rosacea are set against a background of diffuse erythema and telangiectasia, typically on the central face: cheeks, nose, chin, forehead. There is no nodular or cystic component. Also, the triggers are distinct: UV exposure, heat, alcohol, spicy food, and temperature extremes are characteristic rosacea flare patterns. The vascular component, flushing, persistent redness, visible vessels is present to varying degrees. What questions would you ask to tell the difference?