Eczema & Psoriasis Flare-Ups: How to Respond When Skin Deteriorates
A flare-up is not a random event — it is a signal that the balance between the inflammatory environment and the skin's capacity to manage it has shifted. Understanding what that shift means and how to respond effectively, rather than panicking or overreacting, makes a meaningful practical difference to how severe the flare becomes and how quickly it resolves.
This article covers what happens during a flare, what to do step by step for both eczema and psoriasis, how the response differs between conditions, and when home management is no longer sufficient.
What is a flare-up in eczema or psoriasis?
A flare-up is when symptoms suddenly worsen or become more intense, leading to:
Increased redness and inflammation
Dry, flaky or thickened skin
Severe itching or discomfort
New or worsening patches
Flare-ups are a common part of both eczema and psoriasis, which often cycle between active phases and calmer periods.
Eczema and psoriasis flare‑ups can seem unpredictable, but they usually follow patterns connected to stress, inflammation, the immune system, and environmental triggers. Understanding why flare‑ups happen makes it much easier to prevent them — and to calm symptoms quickly when they appear.
What's happening during a flare
A flare represents an increase in the underlying immune activity driving the condition. For eczema, this typically means elevated Th2 cytokines (IL-4, IL-13, IL-31) — producing more itch, more redness, and increased transepidermal water loss. For psoriasis, it means elevated Th17 activity (IL-17, IL-23) — producing accelerated keratinocyte turnover, scale formation, and plaque expansion.
The common thread is that triggers (stress, illness, environmental exposures, dietary factors) have pushed the immune system above the threshold at which it maintains its usual relative quiet. The skin deterioration is a downstream consequence of systemic inflammatory change, not a problem originating in the skin itself.
This framing matters practically: responding to a flare by focusing exclusively on the skin surface — more creams, different products — addresses a consequence rather than the cause. The most effective flare response addresses both the surface symptoms and the underlying inflammatory drivers simultaneously.
Why flare-ups happen
Flare-ups don’t happen randomly—they’re usually triggered by a combination of internal and external factors.
Common triggers include:
Stress → increases inflammation in the body
Weather & Temperature changes → cold, dry air or heat
Irritants → soaps, detergents, skincare products
Allergens → dust, pollen, certain foods
Sweating → can irritate the skin
Dry skin → weakens the skin barrier
Poor sleep → releases stress hormones
Illness →Colds, infections, or even seasonal allergies can cause immune activation that spills over into the skin.
Triggers vary from person to person, which is why managing flare-ups can feel unpredictable.
Step 1: Simplify the skincare routine immediately
When skin is actively flaring, this is not the time to introduce new products, try new actives, or change the routine. The skin's barrier is at its most compromised — new ingredients penetrate more readily, sensitisation risk is elevated, and the skin is more reactive than at any other point.
Strip back to the essentials:
Gentle fragrance-free cleanser (or emollient as soap substitute) — once daily, lukewarm water. Generous fragrance-free emollient applied immediately post-bathing within the two-to-three minute window. Nothing else — no actives, no new products, no exfoliation.
This is the approach from the eczema skincare routine article applied to its most important context: the flare state.
Step 2: Apply prescribed treatment as directed
If you have a prescribed topical corticosteroid or calcineurin inhibitor, a flare is when to use it. Apply to affected areas as your prescriber directed — don't wait for the flare to worsen before starting treatment.
If you don't have a current prescription and your flare is more severe than usual or not responding to emollient over three to five days, contact your GP for assessment. Over-the-counter hydrocortisone 1% is appropriate for mild flares but is insufficient for moderate-to-severe eczema and facial psoriasis, and inappropriate for certain skin areas.
Step 3: Address the inflammatory input
While managing the skin surface, simultaneously assess and address what drove the flare if identifiable:
Stress: implement cortisol-reducing practices — breathwork, reduced caffeine, adequate sleep, reduced workload where possible. Stress is the most consistently documented trigger for both conditions; addressing it actively rather than just noting it is important.
Sleep disruption: a flare that starts or worsens during a poor sleep period may perpetuate itself through the overnight barrier repair deficit. Bedroom cooling, sedating antihistamine for nighttime itch (short-term), and whatever reduces sleep disruption are active management rather than passive measures.
Dietary triggers: if a dietary trigger (alcohol, high-glycaemic foods, a specific food) preceded the flare, removing it during the acute phase reduces ongoing inflammatory input.
Environmental trigger: cold weather without adequate barrier support, sweat from exercise, contact allergen — identify and reduce if possible
Step 4: Don't make the flare worse
Several common responses to skin deterioration actively worsen rather than help:
Hot baths or showers — heat causes vasodilation and histamine release, worsening itch and inflammation. Lukewarm throughout a flare.
Introducing new products — as above. A flare is the worst time to try something new.
Vigorous rubbing — towel-drying by rubbing causes physical trauma. Pat dry always, but especially during a flare.
Over-cleansing — more frequent washing during a flare removes the surface oils that provide residual barrier protection. Once daily, gentle, lukewarm.
Stress about the flare — anxiety about a flare activates the HPA axis, elevating cortisol, which directly worsens both conditions through the stress pathways covered in the stress article. The flare will resolve. Disproportionate anxiety about it extends its duration.
Internal Causes: Why Flares Happen Beneath the Surface
Inflammation
Both eczema and psoriasis are linked to chronic inflammatory pathways. When inflammation spikes (through stress, diet, or immune triggers), skin symptoms worsen.
Gut–Skin Connection
Gut imbalance, food sensitivities, and microbiome disruption can lead to stronger or more frequent flares — especially with eczema.
Nutrient Gaps
Low levels of vitamin D, zinc, omega‑3s, and antioxidants can weaken the skin barrier and slow recovery.
To reinforce the skin from within, daily nutrient support can help stabilise inflammation long‑term.
Try our Skin Support for built for eczema and psoriasis wellness.
What happens in your skin during a flare-up
During a flare-up:
The immune system becomes more active
Inflammation increases
The skin barrier becomes weaker
Moisture is lost more easily
This creates a cycle: dryness → irritation → scratching → more inflammation
This cycle is what makes flare-ups so difficult to control.
Eczema vs psoriasis: different flare priorities
For eczema: the immediate priority is itch management and barrier protection. Itch-scratch-barrier damage is the self-perpetuating cycle that makes eczema flares worse. Breaking the itch-scratch cycle through: emollient, prescribed topicals, cold compress for acute itch relief, and if necessary short-term sedating antihistamine for nighttime itch.
S. aureus secondary infection — increasing warmth, weeping, honey-coloured crusting — warrants urgent GP assessment for antibiotic treatment. Infected eczema will not resolve with emollient and topical steroid alone.
For psoriasis: the immediate priority is reducing the Koebner risk from scratching and mechanical trauma. Aggressive scratching of psoriasis plaques triggers new plaque formation at the scratched site. Apply emollient gently, pat rather than rub, and use cool compresses rather than scratching for relief.
Scale removal — the instinct to physically remove psoriasis scale — risks Koebner reactions. Soften scale with emollient or oil application and allow it to loosen naturally rather than mechanical removal.
How long do flare-ups last?
With appropriate management (emollient, prescribed treatment if available, trigger reduction): most mild-to-moderate eczema flares resolve within one to two weeks. Moderate psoriasis flares typically take two to four weeks to show significant improvement with treatment.
Without treatment or with continued trigger exposure: flares can persist and worsen for weeks or months.
The most impactful variable is speed of response — early, appropriate treatment consistently produces shorter, less severe flares than delayed response.
When to seek medical help
Contact your GP promptly if:
Eczema: signs of secondary bacterial infection (increased warmth, honey-coloured crusting, weeping, fever). Flare not responding to OTC hydrocortisone after five to seven days. Flare covering significant body surface area. Flare in an infant or young child.
Psoriasis: new or significantly worsening psoriasis requiring review of treatment approach. Erythrodermic psoriasis (widespread redness covering most of the body surface) — this is a medical emergency requiring urgent hospital assessment. New joint pain, stiffness, or swelling appearing alongside a skin flare — as covered in the psoriatic arthritis article.
Skin support for flare-up-prone skin
The nutritional foundations that help maintain lower flare frequency and severity — vitamin D, zinc, omega-3s — are particularly important during flares because the skin is under maximum inflammatory load.
Drought's Skin Support Formula provides 14 nutrients including vitamin D, zinc, vitamin C, and magnesium — supporting the internal anti-inflammatory and barrier foundations that make both the flare itself and its resolution faster. Made in the UK, suitable for vegetarians, designed for consistent long-term daily use.
FAQs: Eczema & psoriasis flare-ups
What causes eczema and psoriasis flare-ups?
Flares occur when triggers push the immune system above the threshold at which it maintains relative quiet — typically stress, illness, environmental exposures, or dietary factors acting individually or in combination.
How do you stop a flare-up quickly?
Generous fragrance-free emollient applied immediately post-bathing, prescribed topical treatment, cool compress for itch, lukewarm (not hot) water, and reducing the trigger where identifiable.
How long do flare-ups last?
With appropriate management, most mild-to-moderate eczema flares resolve in one to two weeks; psoriasis flares in two to four weeks. Without treatment or continued trigger exposure, flares can persist for months.
Can flare-ups be prevented?
Yes — by identifying triggers, supporting the skin barrier, managing stress, and maintaining anti‑inflammatory habits.
When should I see a doctor about a flare-up?
Signs of eczema infection (warmth, crusting, fever), no response to OTC treatment within five to seven days, widespread body surface involvement, new joint symptoms with psoriasis, or any erythrodermic psoriasis (widespread body redness).
Should I change my skincare products during a flare?
No — a flare is the worst time to introduce anything new. Simplify to emollient and prescribed treatment only.
Does scratching make flares worse?
Yes — for eczema it damages the barrier and perpetuates the itch-scratch cycle; for psoriasis it triggers Koebner reactions producing new plaques at scratch sites.
Do supplements help reduce flare‑ups?
Certain nutrients (omega‑3s, zinc, vitamin D, antioxidants) support the skin’s barrier and immune balance.
Summary
A flare is a signal that the inflammatory threshold has been crossed — not a random event. Responding effectively means: immediately simplifying skincare to essentials, applying prescribed treatment promptly, actively addressing the inflammatory input rather than just the surface, avoiding the common mistakes that worsen flares, and knowing when GP assessment is needed. The eczema and psoriasis flare responses have specific differences — itch-scratch-infection cycle for eczema; Koebner mechanical trauma risk for psoriasis — but both benefit from the same principle: respond early, respond proportionately, and address cause not just consequence.
Flare-ups are usually a sign that your skin needs more consistent, deeper support. If you’re tired of the cycle of flare-ups, it may be time to go beyond surface-level treatments and support your skin from the inside out.
Start your skin support journey →
Written by the Drought Skin team — specialists in natural support for psoriasis, eczema and acne
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