Rosacea can make familiar skin feel unexpectedly unpredictable.

You can follow the same routine for weeks and then notice your cheeks becoming warm and flushed, or find that a cleanser which usually feels comfortable suddenly stings. Sometimes the reason is obvious. Often, it isn’t.

It’s easy to blame the last thing that touched your face, but redness is what we notice first; rosacea involves more than what is happening at the surface of the skin.

Skincare matters, but so do temperature changes, stress, exercise, food, drink and sunlight. Sometimes several small triggers overlap on the same day, a hot shower, a rushed journey, central heating, a glass of wine or a routine that has gradually become too active.

At By Sarah, we think that makes patterns more useful than long lists of things to avoid.

This guide looks beyond skincare alone, at the everyday details that can make rosacea easier to understand, and easier to live with.

What can help soothe rosacea-prone skin?

Soothe rosacea-prone skin by giving it fewer reasons to react: keep skincare comfortable, moisturise consistently, protect it from UV and pay attention to the situations that repeatedly precede flushing. Heat, sunlight, stress, alcohol, spicy foods and exercise can all play a part, but rosacea rarely follows exactly the same pattern from one person to another.

What we’ll explore

• Why can rosacea flare when your skincare hasn’t changed?
• Does rosacea need a simpler skincare routine?
• Can hot food and drinks trigger flushing?
• Should you avoid alcohol, spicy foods, dairy or gluten?
• Can stress and exercise worsen rosacea?
• What does the gut have to do with rosacea?
• Why does daily SPF matter for rosacea?
• When should facial redness be checked by a doctor?

Why can rosacea flare when your skincare hasn’t changed?

Sometimes, the product on your bathroom shelf hasn’t changed at all. Everything happening around your skin has.

Rosacea is often talked about as though it were simply very sensitive skin or a weakened skin barrier. The biology is more interesting than that. Current research points to an interplay between the nerves that sense heat and irritation, the blood vessels involved in flushing and inflammatory immune responses. The skin barrier and microbiome may be involved too.

This begins to explain something many people with rosacea recognise: your skincare can stay exactly the same while your skin doesn’t. A hotter shower, exercise, stress, sunlight or moving from cold air into central heating can introduce a different signal without a single product changing.

Rather than changing several products after one difficult skin day, notice what repeats. Were you particularly warm? Had your skin been in the sun? Did the flushing follow exercise, stress, a hot drink or a particular product?

For more help recognising the difference between everyday sensitivity, flushing and persistent redness, read our What Causes Facial Redness? Common Triggers and How to Soothe Skin.

Does rosacea need a simpler skincare routine?

When rosacea-prone skin starts stinging, the instinct can be to add another soothing product. Sometimes the routine has simply become too busy.

A simpler routine still needs to do a few things well: cleanse comfortably, moisturise and protect from UV. Scrubbing, frequent exfoliation or several active products used at once can be harder for reactive skin to tolerate, and make it more difficult to understand what your skin is responding to.

Start with cleansing. Balancer Cream Cleanser is Dermatologically Approved for sensitive skin and fragrance free, with a creamy formula designed to remove makeup, sunscreen and daily impurities while leaving skin moisturised rather than stripped.

For skin that feels particularly dry or uncomfortable, Tender Skin Balm can follow as the moisturising step. It combines madecassoside, prebiotic inulin and nourishing plant oils and butters, and is Dermatologically Approved for sensitive skin.

If sensitivity arrives alongside congestion or blemishes, Ally Recovery Blemish Facial Oil can be a nourishing addition to the routine, rather than reaching immediately for increasingly strong spot treatments.

Introduce anything new one at a time. If your skin suddenly feels warmer, tighter or more reactive, you have a much better chance of knowing what changed.

Danielle’s experience with rosacea-prone skin

Danielle shared her experience using Reviver Hydrating Mist and Ally Recovery Facial Oil.

“Absolutely love the Reviver Hydrating Mist and Ally Recovery Facial Oil. For once my rosacea is under control and looking better. My skin is not as red or dry and is so glowy. Obsessed with these products. Thank you By Sarah!”
— Danielle

Danielle’s experience is personal to her. Rosacea varies from person to person, and cosmetic skincare is not a treatment for rosacea.

Can the temperature of food and drinks trigger flushing?

Sometimes, the temperature may matter more than the drink itself.

Hot drinks are a familiar rosacea trigger, which has given coffee a rather poor reputation. But when researchers compared hot coffee, hot water and coffee at room temperature, both hot drinks caused flushing while room-temperature coffee did not. In that experiment, heat rather than caffeine appeared to be responsible for the flushing.

Coffee becomes more interesting still when we look at larger studies. Research following more than 82,000 women found that greater caffeinated coffee consumption was associated with a lower risk of developing rosacea.

That doesn’t mean coffee prevents rosacea. It does mean that “coffee is bad for rosacea” is too simple a rule.

If your morning coffee or tea reliably leaves you flushed, try a smaller experiment before removing it altogether: let it cool a little and notice whether your skin responds differently.

Should you avoid alcohol, spicy foods, dairy or gluten?

There is no single rosacea diet, and whole food groups shouldn’t be removed without a clear reason. Alcohol and spicy foods can provoke flushing for some people, but that isn’t the same as saying they cause rosacea.

A glass of wine may reliably make your cheeks flush without explaining why you have rosacea in the first place. A trigger and a cause are not the same thing.

Spicy foods can be similar. Capsaicin in chilli interacts with sensory pathways involved in heat and flushing, which may help explain why one person notices an obvious reaction while another doesn’t.

Dairy and gluten deserve more scepticism. Despite appearing on many online “avoid” lists, there isn’t good evidence to recommend routinely removing either for rosacea. Unless you have another medical or nutritional reason to avoid them, cutting out whole food groups can make eating unnecessarily restrictive.

If you suspect something you eat or drink, keep the rest of your routine fairly steady and notice whether the same response happens again. A simple note of what you ate, how hot it was and what else was happening that day can be more revealing than cutting out several foods at once.

Persistent digestive symptoms, or a suspected food allergy, intolerance or coeliac disease, are better discussed with your GP or an appropriately qualified healthcare professional before making significant dietary changes.

Can stress and exercise worsen rosacea?

Both can trigger flushing, but that isn’t a reason to stop exercising. If movement tends to leave your skin uncomfortable, the conditions around it may be as useful to notice as the exercise itself.

An overheated studio, several warm layers or a particularly intense session may affect you differently from exercising somewhere cooler.

Stress is harder to adjust. You may simply notice that your skin flushes more readily during a difficult meeting, a rushed journey or a particularly full week.

What does the gut have to do with rosacea?

Rosacea has been associated with several gastrointestinal conditions, including coeliac disease, Crohn’s disease, ulcerative colitis and IBS. That doesn’t mean rosacea is caused by “poor gut health”.

Researchers are also looking at the relationship between the gut microbiome, immune signalling and the skin. But the evidence is still surprisingly small: one systematic review found that the available gut-microbiome research included just 23 people with rosacea across two studies.

That’s useful context when claims about “healing rosacea from the gut” sound much more certain than the science itself.

From a nutrition perspective, we’d put the foundations first: a varied diet, different plant foods and sources of fibre, adapted to your own needs and tolerances.

For those who choose to include a daily probiotic, Flora Daily Biotic provides 20 billion live cultures from 9 probiotic strains, alongside zinc, in a delayed-release capsule. Zinc contributes to the normal function of the immune system and the maintenance of normal skin.

We see Flora as one part of an inside-out approach to everyday wellbeing, alongside good nutrition, thoughtful skincare and appropriate rosacea care.

Why does daily SPF matter so much for rosacea?

Sunlight is one of the better-established rosacea triggers, which makes daily sun protection relevant well beyond summer.

Sunlight and heat aren’t quite the same thing. A crisp winter day may not feel like “sunscreen weather”, but UV exposure hasn’t disappeared because you’re wearing a coat.

For daily protection, Serene Daily SPF 50+ provides broad-spectrum UVA and UVB protection with PA++++ UVA protection. Developed over two years, it received the highest classification for skin compatibility and suitability for sensitive skin in independent third-party controlled clinical testing.let's add

When should facial redness be checked by a doctor?

If you think you may have rosacea, speak to your GP rather than relying on skincare alone. Rosacea is a long-term medical condition, and facial redness can sometimes resemble other skin conditions. Treatment can help control symptoms.

Pay attention to your eyes, too. Rosacea can affect the eyes and eyelids, causing irritation, dryness, crusting around the eyelashes or a gritty sensation.

The NHS advises seeking an urgent GP appointment or NHS 111 if you have rosacea alongside eye pain, blurred vision, sensitivity to light, a red eye or a gritty feeling in the eye, as these can be signs of keratitis.

If familiar redness begins to look or feel different, have it reviewed.

Quick Summary

• Keep skincare straightforward: gentle cleansing, moisturising and daily SPF provide a dependable foundation.
• Look for patterns, not universal rules: temperature, sunlight, stress, exercise, food, drink and skincare can overlap.
• Don’t unnecessarily restrict your diet: there is no single rosacea diet, and routine dairy or gluten avoidance isn’t supported by good evidence.
• Keep gut-health claims in perspective: the relationship is interesting, but rosacea microbiome research is still developing.
• Know when skincare isn’t enough: persistent or changing symptoms, particularly certain eye symptoms, deserve medical advice.

FAQs

What is the best skincare routine for rosacea-prone skin?

Keep it simple: gentle cleansing, moisturising and daily broad-spectrum SPF. Avoid scrubbing or frequent exfoliation if your skin finds them irritating, and introduce new products one at a time so it's easier to understand what your skin tolerates.

What foods commonly trigger rosacea?

Alcohol, spicy foods and hot food or drinks can trigger flushing for some people, but there is no universal rosacea diet. Dairy and gluten don't need to be routinely avoided unless you have another medical or nutritional reason to do so.

Does coffee make rosacea worse?

Not necessarily. Research suggests the heat of a drink may be more relevant to flushing than caffeine itself for some people. If coffee seems to affect your skin, try letting it cool before deciding whether you need to avoid it.

Can probiotics help rosacea?

Research into rosacea and the gut microbiome is still developing, so we don't yet know whether taking a probiotic can improve rosacea symptoms. We see probiotics as part of a wider approach to everyday nutrition and wellbeing rather than a quick answer to rosacea.

Can rosacea go away permanently?

Rosacea is a long-term condition that can flare and settle over time. There isn't currently a cure, but understanding your triggers, finding skincare your skin tolerates and seeking medical treatment when needed can help manage symptoms.

Continue exploring

• What Causes Facial Redness? Common Triggers and How to Soothe Skin
  
• Women’s Health & Gut Health: Why Probiotics Matter
  
• Redness & Rosacea Skincare Guide
  

Living more comfortably with rosacea

Living with rosacea can involve some trial and error, but it doesn’t have to mean avoiding everything that might cause a flare. Getting to know your own patterns can help you make thoughtful changes without changing everything at once. Not sure where to begin? Take our free Skin Quiz for a simpler starting point, or email care@bysarahlondon.com or message @bysarahlondon if you’d rather talk it through with us.

 

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