Rosacea (or Acne Rosacea) is a common but unfortunately rather poorly understood condition. It tends to run in families and is more common in women and those with pale skins. There are no diagnostic tests, so it is always a clinical diagnosis. Rosacea often starts in young adults and tends to cause flushing and redness of the cheeks, nose, forehead and chins.
Flushing is often exacerbated by alcohol, spicy food, hot drinks, emotions, exercise and changes in temperature. Some sufferers also get pimples and most find that their skin is very sensitive. Rosacea can also cause a thickening of the skin over the nose which can even become bulbous (Rhynophyma).