Managing Eczema in Winter vs. Summer: A Seasonal Guide for Australian Families

Eczema involves a compromised skin barrier that struggles to retain moisture and repel external irritants. Both ends of the temperature spectrum — cold, dry winters and hot, humid or dry summers — place different stresses on that already-impaired barrier.

Research published in 2023 involving over 10,700 people with eczema found that roughly 25% of eczema activity was associated with ambient temperature changes. Cold temperatures below freezing were associated with a dramatic increase in flare-related presentations, while warm weather caused fewer but still significant flares. For Australian families, that picture looks a little different: our winters are mild compared to European extremes, but indoor heating and dry air create many of the same skin-drying conditions — and our summers are significantly hotter and more humid, which brings its own set of challenges.

The key principle: it’s not just the temperature itself — it’s what that temperature does to moisture levels in the air, in the skin, and in clothing.

Why Winter Triggers Flares

Winter is the more commonly difficult season for most people with eczema. The core problem is moisture loss from two directions at once: cold outdoor air holds very little moisture, while indoor heating actively strips humidity from the air. Moving between cold outside and heated inside repeatedly compounds this throughout the day.

The specific winter triggers to know:

• Low-humidity air: Both cold outdoor air and heated indoor air have low humidity, accelerating transepidermal water loss — the process by which moisture evaporates from the skin surface. When the skin barrier is already compromised, this moisture loss is faster and harder to replace.
• Indoor central heating: Forced-air heating systems are particularly drying. Running them overnight means the skin is exposed to dry air for 8+ hours with no break, which is why many families notice skin is worst first thing in the morning during winter.
• Hot showers and baths: The instinct to warm up with a long hot shower is understandable but counterproductive. Hot water strips the skin’s natural oils faster than lukewarm water, and in winter the skin has less to start with.
• Woollen and synthetic clothing: Winter fabrics are frequently the wrong choice for eczema-prone skin. Wool fibres have irregular surfaces that cause micro-friction on sensitive skin. Synthetic fleece traps heat and prevents moisture evaporation. Both are common winter wardrobe staples that can drive flares.
• Reduced outdoor time: Spending more time indoors concentrates exposure to indoor allergens like dust mites, pet dander, and mould — all common eczema triggers.

Winter Management Strategies

Moisture management comes first

In winter, moisturising frequency needs to increase. The goal is to compensate for the accelerated moisture loss the season causes. Practical adjustments:

• Moisturise within three minutes of bathing, while skin is still slightly damp — this seals in moisture rather than applying to dry skin
• Use a thicker emollient in winter than you would in summer — ointments and creams retain moisture better than lotions
• Keep a small pot of moisturiser in accessible spots (next to the bed, on the bathroom shelf) so it’s easy to reapply during the night or when the skin feels tight
• Consider moisturising before going outside as well as after coming in — outdoor cold air is a direct trigger

Adjust bath and shower habits

Keep bath and shower water lukewarm — comfortably warm, not hot. Shorter baths (10 minutes maximum) reduce the time skin is exposed to water that can further disrupt the barrier. Pat skin dry gently with a soft towel rather than rubbing.

Address indoor air quality

Indoor humidity is one of the most overlooked winter factors. A humidifier running in the bedroom overnight can meaningfully reduce skin dryness — particularly for children whose bedrooms are heated. Aim for indoor humidity between 40% and 60%. A simple digital humidity monitor (available from hardware stores) takes the guesswork out.

Keeping bedroom temperature cooler than the rest of the house also helps. Overheating during sleep is a major itch trigger — and in winter, it’s very easy to over-heat a bedroom. The Australian guidelines suggest 18–20°C as the optimal sleep temperature.

Choose winter fabrics carefully

Bamboo is the standout choice for eczema-prone skin in winter because it thermoregulates — it keeps skin warm without causing the overheating that synthetic fleece creates. For the full explanation of why bamboo outperforms other winter fabric options, see our guide on why bamboo fabric helps calm itchy, inflamed skin.

For layering: bamboo or 100% organic cotton as the base layer (directly on skin), with softer mid-layers and a wind-proof outer layer that doesn’t sit directly on skin. If your child wears wool, always put a cotton or bamboo layer between the wool and their skin.

For nighttime specifically, this means eczema-friendly bamboo pyjamas for kids rather than fleecy winter pyjamas — bamboo’s thermoregulating properties mean children stay warm enough without the overheating risk.

Manage indoor allergens

Wash bedding weekly in hot water (60°C) during winter to reduce dust mite populations. Vacuum regularly, including mattresses and soft furnishings. If a pet is a known trigger, keep them out of the bedroom during the winter months when indoor time is concentrated.

For eczema-safe laundry products that won’t leave residue on bedding and clothing, see our reviewed list of best laundry detergents for eczema in Australia.

Why Summer Triggers Flares

Summer eczema is driven by a different set of mechanisms than winter eczema. The primary culprits are heat, sweat, sun exposure, and environmental allergens.

• Sweating: Sweat contains salt and other compounds that irritate already-sensitive skin. When sweat sits against the skin — particularly in skin folds like the crooks of elbows and knees — it causes itching and can trigger or worsen a flare. Research confirms that sweat is one of the most consistent eczema triggers in warm weather.
• Overheating: Heat causes blood vessels near the skin surface to dilate, which increases inflammation. For eczema-prone skin, this directly amplifies the itch response. Australian summers — particularly in Queensland, NSW, WA, and SA — can sustain daytime temperatures that make overheating difficult to avoid without careful management.
• Sun exposure: While moderate sunlight can be helpful for some people with eczema (UV light has anti-inflammatory properties that dermatologists sometimes use therapeutically), prolonged sun exposure causes sunburn and heat that worsens most eczema. The challenge is that sunscreens themselves can irritate sensitive skin.
• Chlorine and salt water: Summer swimming brings its own triggers. Chlorine in pools can disrupt the skin barrier; salt water can dry the skin. Neither is universally problematic, but both are worth managing proactively.
• Airborne allergens: Pollen is at its peak during spring and early summer. For children whose eczema has an allergic component, pollen exposure can trigger or worsen flares even without direct skin contact.

Summer Management Strategies

Keep the skin cool and dry

The goal in summer is the opposite of winter: reduce heat and manage moisture accumulation rather than prevent moisture loss.

• Rinse with cool or lukewarm water after outdoor play, exercise, or swimming — removing sweat quickly is one of the most effective summer strategies
• Keep the bedroom cool overnight — a fan or air conditioning at 20–22°C significantly reduces overnight sweating and the itch it causes
• Avoid tight clothing or garments with lots of elastic, which trap heat in specific areas
• Schedule outdoor activities for early morning or late afternoon when temperatures are lower

Summer fabric choices

In summer, breathability becomes the priority. Bamboo remains an excellent choice for eczema-prone skin in warm weather because it wicks moisture away from the skin faster than cotton — reducing the time that sweat sits on the skin. For the physiology behind why children scratch more at night and how overheating plays into that cycle, see our guide on 

In summer, breathability becomes the priority. Bamboo remains an excellent choice for eczema-prone skin in warm weather because it wicks moisture away from the skin faster than cotton — reducing the time that sweat sits on the skin. For the physiology behind why children scratch more at night and how overheating plays into that cycle, see our guide on why kids scratch more at night.

Loose-fitting clothing in natural fibres reduces friction and allows air circulation. Avoid tight synthetic activewear directly against the skin during sport or outdoor play — if your child needs UV protection, choose long-sleeved bamboo or cotton layers rather than synthetic rash vests.

Sunscreen and swimming

Choose a mineral-based sunscreen (zinc oxide or titanium dioxide) over chemical-based options. Mineral sunscreens sit on top of the skin rather than absorbing into it, making them less likely to trigger reactions in sensitive skin. Apply it to a small patch and wait 20 minutes before full application if using a new product.

Before swimming: apply a layer of thick moisturiser or emollient to act as a barrier. After swimming: rinse thoroughly with fresh water and moisturise while the skin is still slightly damp. This routine significantly reduces the post-swim flare many families experience.

Manage pollen exposure

On high-pollen days, shower and change clothes after spending time outdoors. Keep windows closed on days with high pollen counts and use air conditioning where available. This is particularly relevant in spring — which acts as a lead-in to summer and brings the highest pollen concentrations for most of Australia.

At a glance, here’s how the approach differs by season:

Winter priority: Moisture retention — moisturise more frequently, add humidity to indoor air, avoid harsh heating and hot showers

Summer priority: Temperature and sweat management — keep cool, rinse sweat promptly, choose breathable fabrics

Winter fabric focus: Thermoregulating bamboo or cotton base layers, soft mid-layers, wind protection that doesn’t touch skin directly

Summer fabric focus: Loose-fitting bamboo or cotton, moisture-wicking, minimal synthetic contact

Winter bath habit: Short, lukewarm baths; moisturise immediately after

Summer bath habit: Cool rinse after sweating; prompt moisturising

Winter indoor focus: Humidifier, allergen reduction, cooler bedroom temperature

Summer indoor focus: Fan or air conditioning overnight, cool bedroom environment

Seasonal adjustments help most families significantly reduce flare frequency and severity. But eczema is a complex condition, and for some children the seasonal pattern is less important than other triggers — food sensitivities, specific allergens, or underlying immune factors that a GP or dermatologist needs to assess.

Seek medical review if:

• Flares are severe, involve broken skin, weeping, or signs of infection (yellow crusting, increased warmth, spreading redness)
• The skin is not settling between flares — there is no clear period of calmer skin
• Your child’s sleep is significantly and consistently disrupted
• The current management approach has been consistent for four or more weeks without improvement
• You notice a pattern that doesn’t fit the seasonal triggers outlined here — this may point to an individual allergen that needs investigation

For guidance on what eczema sleeves contribute to flare management — including during high-scratch periods in winter and summer nights — see what eczema sleeves do: studies and research explained.