Rosacea

Welcome to another edition of the Doctor’s Note where we talk about what’s on our minds when it comes to your health.

This week I sat down again with Dr. Joni Sago to talk about a skin condition that’s more common than most people realize—rosacea. April was Rosacea Awareness Month, and it’s a perfect time to shed light on the causes, common triggers, and treatments for this stubborn condition. We dug deep into how rosacea is often misunderstood, particularly the old myth that associates it primarily with alcoholism and “W.C. Fields nose.” Dr. Sago explained that while alcohol can worsen rosacea due to its effects on blood vessels, the root causes go far deeper—especially concerning the links between facial skin, the immune system, and gut health.

We also explored the immune mechanisms behind rosacea, highlighting how people with this condition have a hyperactive innate immune system, particularly in the skin of the face. That, combined with a disrupted gut microbiome, can provoke significant skin flares from foods, heat, alcohol, and even wind. Dr. Sago emphasized that gut health plays a critical role—not just in rosacea but in many autoimmune and inflammatory conditions. We rounded out the conversation with an update on modern perspectives for managing rosacea: everything from probiotics, food diaries, and elimination diets to FDA-approved treatments like topical and oral ivermectin. We also touched on how hormones, especially declining estrogen in perimenopausal women, play a big role in skin health and rosacea susceptibility.

PODCAST NOTES 

• Rosacea is commonly misconstrued as being primarily caused by alcoholism, especially due to the visible “W.C. Fields nose,” but as Dr. Sago clarified, while alcohol can certainly trigger or worsen facial flushing due to its effect on blood vessel dilation, it does not actually cause the disease. The relationship is much more about sensitivity to vasoactive substances and less about alcohol consumption itself. 

• The disfiguring rhinophyma ("W.C. Fields nose") is a rare manifestation of rosacea, more commonly seen in men than women because of increased sebaceous gland density; most people with rosacea will never develop this, and the majority will deal more with persistent redness, flushing, and sometimes pimple-like lesions.

• The root of rosacea lies in a hyperactive innate immune system specifically in the skin of the face—which is more densely populated by blood vessels and sensory nerves than other parts of the body—leading to overreactions to triggers like wind, sun, spicy food, and temperature extremes, resulting in the classic visible symptoms of rosacea.

• There is a well-established link between gut health and rosacea. Many patients with rosacea also deal with gut-related conditions such as celiac disease, inflammatory bowel disease, and SIBO. Dr. Sago pointed out that problems in the gut microbiota or gut immune function can lead to systemic inflammation and subsequently trigger facial flare-ups via immune mediators entering the bloodstream.

• Dietary management for rosacea is an individualized process: while some patients are triggered by nightshades, others by gluten or spicy foods, making broad dietary recommendations ineffective. The best approach is for patients to intentionally trial and document specific food eliminations, so they can pinpoint their unique sensitivities without unnecessarily restricting their diet.

• Hormonal shifts, particularly the significant drop in estrogen during perimenopause and menopause, can compromise skin barrier function due to loss of collagen and elastin, making women more susceptible to rosacea flares; vasomotor symptoms like hot flashes can further drive facial redness and inflammation.

• Modern treatments for rosacea now include FDA-approved topical and oral ivermectin, which target both the inflammatory pathways and the burden of demodex mites on the skin that can act as additional triggers, especially for those who experience papular or pustular flares. These therapies broaden our arsenal for tough cases beyond traditional antibiotics or anti-inflammatories.

• Supporting the gut with probiotics can be helpful for some rosacea patients, but it's a complex story. While antibiotics are sometimes used for rosacea, they can actually worsen symptoms in some people by disturbing gut flora, reinforcing that a careful, case-by-case approach to gut and dietary health is crucial for long-term management.

It’s clear that rosacea is a complex disease influenced by immune function, gut health, diet, and hormones—all factors we can assess and manage together. My message: don’t accept persistent facial redness or irritation as “just something you have to live with.” Keep a detailed food and symptom diary, address digestive issues, and work with a provider who sees the big picture—including hormonal and gut connections. The more we understand the underlying triggers, the better we can personalize your care.

Stay educated. Stay healthy. 

Till next week.