Rosacea Review - Newsletter of the National Rosacea Society

Tips for Deciphering Rosacea Terminology

If you're keeping up on rosacea, you may come across medical terminology that is commonly used to describe and explain the condition. Here is a list of frequently used technical terms and their meanings.

  • Chalazion: A cyst on the eyelid due to plugging of the meibomian glands, fat-secreting glands of the eyes.
  • Edema: Swelling from abnormally large amounts of fluids in the tissues.
  • Erythema: Abnormal redness of the skin.
  • Flushing: Transient redness of the face and neck.
  • Ocular: Relating to the eyes.
  • Papule: A small, dome-shaped, solid, usually inflamed elevation of the skin.
  • Paranasal: Alongside the nose.
  • Phymatous: Enlarged due to the growth of excess tissue.
  • Plaque: An elevated red patch on the skin.
  • Pustule: A small elevation of the skin filled with a white substance.
  • Rhinophyma: Enlargement of the nose with excess tissue.
  • Telangiectasia: Blood vessels visible through the skin.



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National Rosacea Society
196 James St.
Barrington, IL 60010

Our Mission

The National Rosacea Society is a 501(c)(3) nonprofit organization whose mission is to improve the lives of people with rosacea by raising awareness, providing public health information and supporting medical research on this widespread but little-known disorder. The information the Society provides should not be considered medical advice, nor is it intended to replace

consultation with a qualified physician. The Society does not evaluate, endorse or recommend any particular medications, products, equipment or treatments. Rosacea may vary substantially from one patient to another, and treatment must be tailored by a physician for each individual case. For more information, visit About Us.