5 Common Eczema Triggers (And How to Avoid Them)

If you or your child lives with eczema, you'll know that flare-ups rarely feel random - even when they seem to come out of nowhere. The truth is, eczema is almost always a response to something. Identifying your personal triggers is one of the most powerful things you can do to break the cycle of flaring and find longer stretches of calm, comfortable skin.

As a naturopath who has worked with eczema sufferers across Australia and worldwide - and lived with eczema myself - I've seen these five triggers come up again and again.

# 1. Synthetic Fragrances and Harsh Skincare Ingredients

One of the most common culprits hiding in plain sight. Synthetic fragrances are found in everything from body wash and moisturisers to laundry powder and candles — and they're a leading cause of contact irritation and allergic reactions in eczema-prone skin.

What to look for: Ingredients listed as "fragrance," "parfum," or "aroma" on a label. Sodium lauryl sulphate (SLS), preservatives like methylisothiazolinone, and certain alcohols can also strip and irritate the skin barrier.

What to do instead: Simplify your routine. Choose fragrance-free, low-ingredient products designed for sensitive skin, and introduce new products one at a time so you can identify what's working — and what isn't.

# 2. Stress

This one surprises people, but the skin-stress connection is well established. When we're stressed, the body releases cortisol, which can increase inflammation and compromise the skin's natural barrier function - creating the perfect conditions for an eczema flare.

For many people (and children going through big transitions like starting school), stress isn't the root cause of eczema, but it's a reliable amplifier of it.

What to do: Supporting the nervous system is a genuinely important part of eczema management. This might look like prioritising sleep, reducing stimulants, or finding a daily wind-down practice that works for your lifestyle. In clinic, we look at the whole picture - because skin health doesn't exist in isolation.

# 3. Food Sensitivities

Not everyone with eczema has food triggers, but for many people - particularly children - certain foods can drive or worsen inflammation. Common culprits include dairy, eggs, gluten, soy, tree nuts, and high-histamine foods.

It's worth noting that a food sensitivity is different from a food allergy, and the connection isn't always obvious. A reaction might show up hours or even a day after eating, making it tricky to identify without support.

What to do: Rather than eliminating entire food groups without guidance (which can affect nutrition, especially in children), I'd recommend working with a practitioner to explore whether food is playing a role for you. A structured elimination protocol can be incredibly illuminating - and sustainable - when done properly.

# 4. Environmental Allergens

Dust mites, pet dander, mould, and pollen are among the most common environmental allergens linked to eczema flares. In Queensland's warm, humid climate, dust mites and mould in particular can be year-round challenges.

These allergens trigger an immune response that can show up in the skin, especially in people who also have hay fever or asthma - a combination known as the "atopic triad."

What to do: Some practical steps include washing bedding weekly in hot water, keeping indoor humidity low, and ensuring good ventilation in bathrooms and bedrooms. If allergens are a significant factor, this is worth discussing with your healthcare team.

# 5. Temperature and Sweat

Rapid changes in temperature - going from air conditioning to outdoor heat, or a hot shower - can trigger itching and flushing in sensitive skin. Sweat is also a known irritant for many eczema sufferers, as it can disrupt the skin barrier and cause stinging, particularly in skin folds.

This is a common challenge in Queensland summers, where heat and humidity combine.

What to do: Lukewarm (not hot) showers, breathable natural-fibre clothing, and rinsing off sweat promptly after exercise can all make a meaningful difference. Keeping skin consistently moisturised also helps maintain the barrier against these temperature-related triggers.

Everyone's Eczema Is Different

There's no single eczema protocol that works for everyone - because eczema is a complex, multifactorial condition influenced by your genetics, gut health, immune system, environment, and lifestyle. What triggers a flare for one person may have no effect on another.

This is exactly why I take an individualised approach at The Eczema Clinic. Whether you're managing your own eczema or navigating it for your child, understanding your specific triggers is the foundation of everything.

Ready to get to the root of your eczema? Book here https://jacinta-mullins-naturopath.simplecliniconline.com/diary

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This blog is intended for general informational purposes only and does not constitute medical advice. Please consult a qualified healthcare practitioner for personalised guidance.