Miami Herald (Sunday)

Have red patches on your face? Here are four potential causes of rosacea

- BY LESLIE BAUMANN, M.D. Special to the Miami Herald For more skincare news and advice, follow @SkinTypeSo­lutions on social media.

Rosacea is an inflammato­ry skin condition that can affect people of all ages, causing redness, swelling, stinging and even pimple-like pustules on the face. While the exact cause of rosacea remains unknown, researcher­s have uncovered several possible reasons why some people may develop this common skin condition.

IMMUNE SYSTEM FUNCTION

In people with rosacea, the immune system tends to overreact, causing excessive inflammati­on. While more research is needed to determine the exact reasons why this occurs, it is believed that a peptide called cathelicid­in may play a key role in causing the immune system to go into overdrive, triggering redness, swelling and other symptoms of rosacea.

Anti-inflammato­ry skincare ingredient­s like feverfew, green tea extract, niacinamid­e and others can help to soothe red, inflamed skin. Additional­ly, avoiding harsh scrubs, chemical exfoliants and other known triggers can help to avoid “turning on” these inflammato­ry pathways.

DEMODEX MITES

Demodex is a specific genus of microscopi­c mite that lives in hair follicles and sebaceous glands. While these mites are common and generally harmless in small numbers, large population­s can activate the immune system and have therefore been linked with rosacea.

Some rosacea treatments such as Soolantra, which contains topical ivermectin, can improve rosacea symptoms.

Much research is centered on better understand­ing the connection between the gut microbiome and the skin. Researcher­s have found a connection between imbalances within the gut microbiome and inflammato­ry skin conditions such as rosacea. While it is possible that specific probiotics may help rebalance both the gut and skin microbiome, we are still unsure about which probiotics, if any, may work best.

HORMONES

High levels of estrogen or testostero­ne may play a role in the worsening of rosacea symptoms. Additional­ly, thyroid disorders may also be linked with inflammato­ry skin conditions. However, more research is needed to confirm these potential hormone-related connection­s.

BOTTOM LINE

While scientists are still examining the underlying causes of rosacea, immune system function, Demodex mites, the gutskin connection and hormone imbalances may play crucial roles in the developmen­t or worsening of rosacea symptoms.

 ?? ??

Newspapers in English

Newspapers from United States