Atopic Skin and the Seasons
Atopic dermatitis rarely stays the same throughout the year. For many people, certain seasons reliably bring more severe flares, while others offer relative calm. Understanding how each season affects your skin — and being proactive about adapting your routine — can make a significant difference in overall symptom control.
While individual responses vary, there are well-recognized seasonal patterns worth understanding.
Winter: The Most Challenging Season for Most
Cold weather is consistently the season most people with AD find most difficult. Here's why:
- Low outdoor humidity dries the skin barrier significantly.
- Indoor central heating further reduces air moisture, increasing trans-epidermal water loss (TEWL).
- Wool clothing and heavy fabrics used for warmth can irritate sensitive skin.
- Hot showers, which become more tempting, strip natural skin oils.
Winter Skincare Adjustments
- Switch from lighter lotions to richer creams or ointments with occlusive properties (petrolatum-based formulations are particularly effective).
- Run a cool-mist humidifier in the bedroom and living areas.
- Layer clothing with a soft cotton base layer to protect skin from scratchy outer layers.
- Keep showers lukewarm and short; moisturize immediately after.
- Protect exposed skin (hands, face) with barrier creams when going outdoors.
Spring: Pollen, Renewal — and Flares
Spring brings rising temperatures and increased humidity, which often helps dry skin. However, it also brings high pollen counts, which can trigger the atopic march — worsening both hay fever and eczema simultaneously in those who are sensitized.
Spring Skincare Adjustments
- Monitor local pollen forecasts and limit outdoor time on high-count days.
- Shower and change clothes after spending time outdoors to remove pollen from skin and hair.
- Transition gradually from heavy winter moisturizers to lighter formulations as humidity increases.
- Be vigilant about newly blooming plants when gardening — wear gloves and wash hands frequently.
Summer: Heat, Sweat, and Sun
Summer is a mixed season for atopic skin. Higher humidity can improve dryness, and moderate sun exposure has been shown to have anti-inflammatory effects for some people. However, heat and sweat are significant irritants.
- Sweat contains salts and compounds that irritate inflamed skin and trigger the itch-scratch cycle.
- Heat dilates blood vessels and intensifies itching.
- Sunscreen is essential, but fragrance and chemical filters in some formulas can irritate sensitive skin.
- Chlorine in pools and saltwater can both dry and irritate skin.
Summer Skincare Adjustments
- Shower promptly after sweating or swimming and reapply moisturizer.
- Choose mineral-based sunscreens (zinc oxide or titanium dioxide) formulated for sensitive skin.
- Wear loose, light-colored, breathable cotton clothing.
- Use air conditioning on high-heat days to keep body temperature and itch sensation down.
- Stay well hydrated — internal hydration supports skin function.
Autumn: The Transition Period
Autumn is a period of transition that can catch people off guard. Temperatures fluctuate, indoor heating is switched back on, humidity drops, and mold spore counts in the environment often peak — all of which can combine to trigger flares.
Autumn Skincare Adjustments
- Begin transitioning to heavier moisturizers before the skin becomes visibly dry — don't wait for symptoms to worsen.
- Check heating systems before turning them on: dusty vents can release allergens into the air.
- Be aware of leaf mold outdoors as a potential trigger.
- Reintroduce humidifiers as heating season begins.
Year-Round Principles
Regardless of season, these principles remain constant:
- Moisturize daily — at minimum once, ideally twice.
- Use fragrance-free, hypoallergenic products consistently.
- Track seasonal patterns in a skin diary to anticipate and prepare for difficult periods.
- Maintain communication with your dermatologist, especially around seasonal transitions.