What Causes Rosacea?
It is a problem with facial blood vessels not with skin cells. The flush of rosacea is due to telangectasias, or enlarged blood vessels, in the upper dermis.

It is unknown what causes Rosacea but some theories include:

  • A disorder of the blood vessels
  • Heliobactor pylori, chronic bacterial infection in the stomach
  • Demodex folliculorum, a microscopic skin mite living in human hair
  • Fungus
  • Malformation of connective tissue
  • Sun-damaged skin may play a contributing role

Is it contagious?
No it is not considered infectious. Antibiotics are effective due to their anti-inflammatory effect.

Is Rosacea hereditary?
There is no scientific research, but 40% of rosacea patients could name a relative with similar symptoms. Ethnicity may be a factor. 33% of patients had at least one (1) parent of Irish heritage. 27% had a parent of English heritage. Also, ethnic groups of Scandinavian, Scottish, Welsh or Eastern European descent.

Can it be diagnosed before a major flare-up?
Possibly, in teens or people in their early 20’s. Symptoms may include acne, flushing and blushing, prolonged redness. Topical medications or skin care products may be irritating.

Bumps are caused by diluted blood vessels, local swelling, leakage of inflammatory cells into the superficial layers of the skin.

Papules are caused by vascular flushing; leakage of inflammatory cells out of the blood vessels and into the dermal skin. Inflammation migrates towards the surface of the skin. Papules are not caused by bacteria or mites.

Pustules are caused by vascular flushing around sebaceous glands or pores.

Burning is caused by the activation of sensory pain nerves in facial skin. It is usually triggered by heat.

People with rosacea do not have blackheads

Risk Factors
These factors can aggrevate the condition by increasing blood flow to the face (surface of the skin).

  1. hot foods, beverages
  2. stress, anger, embarrassment
  3. spicy foods
  4. strenuous exercise
  5. alcohol
  6. hot baths, saunas
  7. temperature extremes
  8. corticosteroids
  9. sunlight
  10. drugs that dilute blood vessels

Skin care products that contain acids, alcohol or other irritants can worsen roscea.


  • wear protective clothing
  • protect the face in the winter
  • avoid rubbing or touching the face too much
  • avoid products containing alcohol, other irritants
  • apply moisturizer after any medications are dry
  • use non-comedogenic products
  • avoid over-heating
  • with make-up, choose green or yellow tints to cover redness
  • avoid alcohol

*Demodicidosis – a disorder that arises when the sebaceous follicles are invaded by mites. These mites colonize follicles in areas that offer the nourishment of rich cleansing creams.

*Metronidazole-an anti-microbial drug

*Rhinophyma- swelling of the nose due to enlarged blood vessels