Rosacea Triggers: What to Avoid and How to Track Your Own

The most common rosacea triggers are sun exposure, heat and hot drinks, alcohol (red wine especially), spicy food, stress, strenuous exercise, hot or cold weather, and some skin and hair products. Triggers differ from person to person, so the most reliable way to find yours is a daily diary kept for at least two weeks and compared against your flare-ups.

Below is a table of the common triggers with what dermatology sources suggest for each, a closer look at alcohol, food, heat and skincare, and a step-by-step method for building your own trigger diary from photos and notes. Diagnosis and prescription treatment belong with a dermatologist; this guide is about the part you can manage day to day.

What are the most common rosacea triggers?

The NHS lists alcohol, spicy foods, hot drinks, sunlight, hot or cold temperatures, aerobic exercise like running, and stress as common triggers. The AAD adds hairspray and other skin and hair care products, and DermNet's list also includes psychological stress, air pollution and tobacco smoking. Here's what the sources suggest for each.

The tips in the table come from the AAD's guide to preventing rosacea flare-ups and the NHS's list of things you can do to help, which also includes wearing sunscreen of at least SPF 30 every day and avoiding heat, sunlight and humid conditions where possible.

Why does avoiding triggers matter?

Each flare can make the next one worse. The AAD explains that each time your skin flushes, it can stay red a little longer, and that in some people repeated flushing leads to permanent redness, visible blood vessels and thickened skin. Treatment can also become harder, so dermatologists often ask patients to find their triggers before starting treatment. Triggers can still cause flares while you're on treatment, which is why trigger management is part of most rosacea plans.

Does alcohol cause rosacea or just trigger flare-ups?

Alcohol is a well-known flare trigger, and research suggests drinking may also raise the risk of developing rosacea in the first place. The AAD summarizes a study of 82,737 women followed over 14 years: women who drank had a higher risk of developing rosacea, the risk rose with the amount, and white wine and liquor were linked to a greater risk. Two other studies, one of 275 pairs of twins and one comparing 60,042 people with rosacea to 60,042 without, found drinking slightly increased the risk.

Two caveats from the same page. More research is needed to know whether drinking actually causes rosacea, and people who never drink can get it. A red face doesn't mean someone has a drinking problem. For flare control, the AAD's practical advice is to choose white over red wine, dilute drinks with soda, limit yourself to one or two drinks with a glass of cold water after each, or skip alcohol. Our guide to alcohol and your skin covers its other effects.

Which foods trigger rosacea?

Spicy food and hot food or drinks are the best documented; beyond that, food triggers are personal. Cleveland Clinic notes that some studies suggest spicy foods like hot wings and jalapeño peppers can trigger symptoms, but there's no guarantee they'll trigger yours. DermNet's list of common triggers to record in a diary includes spicy food, hot and cold temperatures, fruits and vegetables, dairy and marinated meat products.

Some flushing comes from food additives rather than the food. DermNet's flushing page notes that sodium nitrite in cured meats and sulfites in beer, wine and some processed foods may cause flushing in some people. That's a good reason to log the specific foods and drinks in each meal. There's no single rosacea diet that suits everyone, so cutting whole food groups without evidence from your own diary isn't worth it.

How do heat, sun and exercise trigger rosacea?

Each one can bring on flushing, which DermNet explains happens when blood vessels in the skin dilate, and rosacea skin overreacts. DermNet describes rosacea as an exaggerated immune reaction to the initial trigger and calls UV radiation the most significant environmental trigger, noting that a protein called cathelicidin LL-37 increases the skin's sensitivity to the sun.

• Sun: the AAD says just a few minutes of sunlight on rosacea-prone skin can lead to flushing and redness. It recommends a gentle, broad-spectrum, fragrance-free sunscreen of SPF 30 or higher with zinc oxide, titanium dioxide or both, plus a wide-brimmed hat and avoiding midday sun. See our pick of mineral sunscreens for sensitive skin.
• Heat: warm rather than hot baths and showers, layers you can take off, sitting away from fireplaces and heaters, and a cold, wet cloth around the neck if you start to overheat.
• Exercise: the NHS advises against doing too much aerobic exercise, like running. Exercise is still good for you, so one way to keep going is to work out in a cooler room or at a cooler time of day, keep a cold drink and a fan close, and compare harder and easier sessions in your diary.

Which skincare ingredients trigger rosacea?

Anything that stings or burns can set off a flare. The AAD recommends avoiding products that contain alcohol, camphor, fragrance, glycolic acid, lactic acid, menthol, sodium lauryl sulfate and urea. It also suggests choosing fragrance-free rather than "unscented" products, picking a cream over a lotion or gel, never using an astringent or toner, and stopping exfoliation.

A few habits from the same AAD guidance help too: wash with your fingertips, not a washcloth or sponge; rinse with warm water; wait for your face to dry before moisturizing, which makes stinging less likely; and test new products before putting them on your whole face. If you wear makeup, the AAD notes a green-tinted concealer can camouflage redness.

How do you build a personal rosacea trigger diary?

Track what you're exposed to and how your skin responds, every day, for at least two weeks. The AAD lays out a three-step process: list the triggers you suspect, confirm them with a daily record, then make changes. It says the National Rosacea Society's diary form should be completed every day for at least 2 weeks, and that a notebook works too if you write down foods, drinks, personal care products and exposures like heat and cold, plus how serious your symptoms were. Keeping it up for a few weeks or months helps you pinpoint the pattern.

Here's a method that adds photos to that process:

1. Take a baseline photo. Same place, same window light, same time each morning, no makeup.
2. Log exposures as they happen. Meals and drinks (with specifics like "red wine, 2 glasses"), hot drinks, time in the sun, workouts, weather, stress, new products and any medicines.
3. Rate the flare. Use a simple 0 to 3 scale for redness, warmth and stinging, and take a second photo when a flare starts.
4. Review after 2 to 4 weeks. Look for exposures that came before a flare more than once.
5. Test one suspect at a time. Cut it out for two weeks, then reintroduce it once while you're otherwise calm, and log what happens.

The rows above are an example of the format, not real data. If you're not sure when you're flushing, the AAD suggests checking whether your cheeks feel warm to the touch, or asking someone close to you to tell you. For more on what to log, see why keep a skin diary, and if you're still unsure the redness is rosacea, read rosacea vs acne.

How can a selfie scan help you track triggers?

Photos are the part of a trigger diary people skip, and they're what makes patterns visible. Pori takes a selfie in about 10 seconds and returns an overall skin score with breakdowns such as Pigmentation & Tone and Overall health. Its skin diary logs sleep, water, stress and diet beside each scan, and the before/after comparison and progress charts let you check a calm week against a week with more flares. Reminders help with the daily habit. Keep notes on alcohol, heat, sun and products alongside, since they're among the common triggers above.

Pori is not a medical device. It doesn't diagnose rosacea or recommend prescription treatment, so share your diary with a dermatologist and let them decide what to do next.

When should you see a dermatologist?

See a dermatologist or GP if you think you have rosacea; the NHS says rosacea can get worse if it isn't treated, and treatment can help control symptoms. Ask for an urgent appointment if you have eye pain, blurred vision, light sensitivity, a red eye or a gritty feeling. If you think a prescribed medicine is causing flares, the AAD says to ask the prescribing doctor before stopping it. For other causes of a red face, see why is my face red.