How Stress Triggers Eczema and Psoriasis Flare-Ups
For most people with eczema or psoriasis, the stress-flare connection is not a theory — it's lived experience. Work pressure spikes, and a patch that was settling suddenly isn't. A difficult period brings a full flare that takes weeks to resolve. The pattern is so consistent and so widely reported that it was one of the earliest observations in psychodermatology — the study of the relationship between psychological states and skin conditions.
The connection is also mechanistically specific. This isn't just "stress is bad for you generally." There are identifiable pathways through which psychological stress directly affects the immune responses driving both conditions, the barrier function of the skin, and the itch threshold that determines how reactive the skin becomes. Understanding these mechanisms is useful — both because it validates the experience (it's not "in your head") and because it points toward what actually helps.
Stress, Eczema & Psoriasis: Why Stress May Affects Skin
Many people with eczema or psoriasis notice the same frustrating pattern:
Stress increases… and suddenly their skin flares too.
Whether it’s work pressure, poor sleep, anxiety or emotional stress, flare-ups often seem to appear during the most stressful periods of life. And while stress isn’t considered the sole cause of eczema or psoriasis, research increasingly shows it may strongly influence inflammation, itching and skin barrier function.
For some people, stress and skin symptoms can even become a cycle — where stress worsens the skin, and worsening skin increases stress further.
In Short
Stress can worsen eczema and psoriasis flare-ups
Stress affects inflammation, sleep and skin barrier function
Itching and scratching often increase during stressful periods
Poor sleep and anxiety can further aggravate symptoms
Supporting overall wellbeing may help support calmer skin long-term
Stress may not directly “cause” eczema or psoriasis, but it can strongly influence how reactive the skin becomes.
Why Stress Affects The Skin
Stress affects multiple systems throughout the body, including:
Hormones
The immune system
Inflammation pathways
Sleep quality
Skin barrier function
When stress levels rise, the body releases stress hormones like cortisol and adrenaline. Researchers believe chronic stress may dysregulate inflammatory responses linked to eczema and psoriasis.
Skin and stress are closely connected through the nervous system and immune system.
The HPA axis: stress, cortisol, and immune dysregulation
The primary pathway through which stress influences eczema and psoriasis is the hypothalamic-pituitary-adrenal (HPA) axis — the body's central stress response system.
When stress is perceived, the hypothalamus signals the pituitary gland to release ACTH (adrenocorticotropic hormone), which in turn signals the adrenal glands to release cortisol. Cortisol is often described as an anti-inflammatory hormone — and in the short term, during acute stress, it does suppress immune activity. This is why short-term stress occasionally produces brief skin improvement, or why symptoms sometimes worsen only when the stressful period ends and cortisol drops (the "let-down" flare).
With chronic stress, however, the picture reverses. Sustained cortisol elevation leads to glucocorticoid receptor resistance — immune cells become desensitised to cortisol's anti-inflammatory signals. The result is paradoxically increased inflammatory activity, elevated pro-inflammatory cytokine production, and a skin immune environment that is more reactive, not less. This is the mechanism behind the well-documented phenomenon of chronic stress worsening both eczema and psoriasis over time.
Substance P and the neurogenic inflammation pathway
A second and distinct pathway operates through the nervous system directly — without requiring the HPA axis at all.
Psychological and physical stress triggers the release of substance P, a neuropeptide produced by sensory nerve endings in the skin. Substance P acts on mast cells in the dermis, triggering histamine release. Histamine directly causes itch and increases vascular permeability. The result is the rapid, intense itching that many people with eczema associate with stressful moments — the kind that starts almost before the stress has fully registered consciously.
This neurogenic route is faster than the hormonal HPA pathway and explains why itch can spike within minutes of a stressful event, without any visible change in the skin. It also explains why the itch-scratch cycle is so strongly entangled with stress — scratching provides momentary relief from substance P-driven itch, but damages the barrier and triggers further inflammatory signalling.
In psoriasis, substance P also stimulates keratinocyte proliferation — directly accelerating the skin cell turnover that produces plaques. Some research has found elevated substance P levels in psoriatic plaques and a correlation between substance P concentration and disease severity.
The bidirectional loop: when skin symptoms become a stressor
Both conditions create a feedback loop that is worth naming explicitly because recognising it is the first step to interrupting it.
Eczema and psoriasis are visibly distressing conditions. The itch, the appearance of the skin, the unpredictability of flares, the social self-consciousness, the disrupted sleep from nighttime itching — all of these generate ongoing psychological stress. That stress activates the same HPA and neurogenic pathways that worsen the condition. The skin worsens. The distress increases. The cycle continues.
Research has measured this directly: studies have found that people with higher psoriasis-related stress show greater inflammatory marker elevation and more severe disease activity. The connection runs in both directions. Managing the stress of having the condition is therefore part of managing the condition — not an optional adjunct.
Stress & Eczema
Stress is one of the most commonly reported eczema triggers.
Many people notice increased:
Itching
Dryness
Scratching
Skin sensitivity
Flare-ups during emotional stress
Stress may also weaken the skin barrier, making eczema-prone skin more vulnerable to irritation and moisture loss. (nationaleczema.org)
And because eczema itching itself can become stressful, the cycle often continues.
Stress and eczema often feed into each other repeatedly.
Stress & Psoriasis
Psoriasis is also strongly linked to stress and emotional wellbeing.
Research suggests stress can:
Trigger flare-ups
Worsen inflammation
Increase plaque severity
Affect immune signalling pathways
Some studies estimate stress acts as a trigger factor in a large proportion of psoriasis cases.
Emotional stress is considered one of the most common psoriasis flare triggers.
Sleep: where the stress-skin connection becomes most disruptive
Poor sleep sits at the intersection of stress and skin in a way that compounds both. Stress disrupts sleep quality — elevated cortisol and heightened nervous system arousal make it harder to fall and stay asleep. Eczema itching intensifies at night when distracting daytime activity stops and skin temperature rises. Both effects feed into sleep deprivation.
Sleep deprivation then impairs skin barrier recovery (the skin does most of its repair and regeneration at night), elevates inflammatory markers including IL-6 and CRP, increases cortisol dysregulation, and lowers pain and itch thresholds. A single night of poor sleep can measurably increase itch sensitivity the following day.
This is why sleep intervention — not just stress management broadly — is one of the highest-leverage lifestyle changes for both conditions. Anything that improves sleep quality has downstream benefits for skin that are direct and measurable.
Why Stress Often Increases Itching
Stress can heighten skin sensitivity and nervous system activity, which can increase the urge to scratch.
This may lead to:
More inflammation
Skin barrier damage
Worsened eczema or psoriasis
Slower healing
The more irritated the skin becomes, the more stressful the symptoms may feel.
The itch-stress cycle can become difficult to break once flare-ups start.
The gut connection
Stress also affects gut barrier function — elevated cortisol loosens tight junction proteins in the intestinal lining, increasing intestinal permeability. As covered in the leaky gut and psoriasis article in this series, increased gut permeability is associated with higher systemic inflammatory burden in psoriasis. Stress therefore amplifies the gut-skin axis connection, not just the direct skin pathways.
Can Stress Alone Cause Eczema or Psoriasis?
Usually not.
Both eczema and psoriasis are complex conditions linked to:
Genetics
Immune function
Skin barrier health
Environmental triggers
Lifestyle factors
However, stress may significantly influence symptom severity and flare frequency.
Stress is often one trigger among many rather than the only cause.
Ways People Try To Reduce Stress-Related Flare-Ups
Prioritising Sleep
Keeping a consistent sleep-wake schedule, reducing blue light in the hour before bed, keeping the bedroom cool (particularly important for eczema, where heat elevates itch), and avoiding alcohol (which disrupts sleep architecture) are the most evidence-based practical changes.
Breathwork and mindfulness
The vagus nerve — the main conduit of the parasympathetic nervous system — is directly activated by slow, controlled breathing. Vagal activation reduces cortisol, lowers substance P production, and shifts the immune environment away from the inflammatory Th17-dominant profile relevant to psoriasis. Box breathing (inhale 4 counts, hold 4, exhale 4, hold 4) and 4-7-8 breathing are the most accessible daily practices. Five minutes is enough to produce measurable HRV (heart rate variability) improvement, a marker of parasympathetic tone.
Keeping Skincare Gentle
Stress often triggers compulsive skincare behaviour — trying new products, applying more of everything, obsessively checking the skin. This typically makes things worse. New products introduce potential irritants during a period of heightened reactivity. Repeated handling of the skin increases Koebner risk in psoriasis. Obsessive monitoring amplifies the psychological focus on symptoms and sustains the stress loop.
The right approach during a stress-related flare is almost always simpler rather than more: revert to the simplest, most tolerated skincare routine, apply emollient consistently, and focus energy on the stress source rather than the skin.
Cognitive behavioural therapy (CBT)
CBT-based interventions have the strongest evidence of any psychological approach for psoriasis specifically. The NICE guidelines for psoriasis acknowledge psychological support as part of comprehensive management. A GP referral to IAPT (Improving Access to Psychological Therapies) is the NHS route. CBT addresses the bidirectional loop specifically — reducing both the psychological distress of having the condition and the catastrophising that amplifies stress reactivity.
Exercising Regularly
Regular aerobic exercise reduces baseline cortisol, improves HRV, and reduces inflammatory markers. It also improves sleep quality. For people with active psoriasis or eczema, the sweating and heat of exercise can itself be an irritant — covered in the exercise article in this series — but at moderate intensity the anti-stress benefits outweigh this for most people.
Yoga
Covered in detail in the yoga article in this series — restorative and yin yoga have the strongest evidence for parasympathetic activation and cortisol reduction in the context of inflammatory conditions. Even a short daily practice accumulates meaningful benefit over weeks.
Social support
Psoriasis and eczema are conditions with significant psychological burden. Isolation amplifies the distress-flare cycle. Peer support groups — Psoriasis Association, National Eczema Society in the UK both run support communities — have documented benefit for quality of life measures and reported symptom severity.
Building Consistent Routines
Predictable habits may help reduce overall stress levels.
Supplement Support for Dry, Sensitive Skin
Magnesium is the nutrient most directly relevant to stress physiology. It is required for healthy HPA axis regulation — magnesium deficiency is associated with exaggerated cortisol responses to stress, and chronic stress depletes magnesium. This creates a worsening cycle: stress depletes magnesium, magnesium depletion amplifies stress reactivity, which further depletes magnesium.
B vitamins (particularly B6 and B12) support neurotransmitter synthesis relevant to mood regulation and stress resilience. Zinc supports immune regulation and is depleted by chronic inflammation.
Drought's Skin Support Formula includes magnesium, zinc, and B vitamins alongside 11 other nutrients selected for their roles in skin health — supporting the nutritional foundations that stress depletes and that skin relies on most during difficult periods. Made in the UK, suitable for vegetarians, designed for consistent long-term daily use.
Common Mistakes People Make During Stress Flare-Ups
Overloading The Skin With Products
Panic-buying skincare may overwhelm sensitive skin further.
Scratching More Frequently
Stress often increases unconscious scratching behaviours.
Ignoring Sleep & Recovery
Exhaustion may worsen skin inflammation over time.
Expecting Instant Improvements
Stress-related skin changes often take time to settle.
Calmer, simpler routines are often easier for stressed skin to tolerate.
FAQ
Can stress trigger eczema?
Stress doesn't cause eczema — it's an immune-mediated condition with genetic underpinning. But stress is one of the most consistently documented triggers for flares, operating through specific pathways including cortisol dysregulation and neurogenic histamine release.
Can stress worsen psoriasis?
Research suggests stress may worsen psoriasis severity and increase flare-ups.
Why does stress make psoriasis worse?
Chronic stress dysregulates HPA axis cortisol signalling, increases pro-inflammatory cytokine production, stimulates substance P release which accelerates keratinocyte proliferation, and disrupts sleep — all of which amplify the immune pathways driving psoriasis.
How quickly can stress trigger a flare?
The substance P-histamine pathway operates within minutes, causing rapid itch onset during acute stress. The HPA-cortisol pathway takes longer — chronic stress typically worsens skin over days to weeks rather than minutes to hours.
Does managing stress actually improve eczema or psoriasis?
Yes — there is clinical evidence for this, particularly for CBT in psoriasis. The Kabat-Zinn phototherapy study (referenced in the yoga article) demonstrated that mindfulness practice alongside UV treatment significantly improved treatment response.
What is the best stress management approach for skin conditions?
CBT has the strongest evidence specifically for psoriasis. Breathwork and yoga are the most accessible daily practices. Exercise and sleep quality optimisation have the broadest supporting evidence across both conditions.
Why does skin sometimes improve during acute stress but worsen with chronic stress?
Acute cortisol release has short-term anti-inflammatory effects. With chronic stress, glucocorticoid receptor resistance develops — immune cells become desensitised to cortisol — leading to paradoxically increased inflammatory activity over time.
Why does stress make skin itch more?
Stress may increase nervous system activity and inflammation linked to itching.
Does poor sleep affect eczema and psoriasis?
Yes. Poor sleep may worsen inflammation, skin recovery and itching.
Can anxiety cause skin flare-ups?
Anxiety and emotional stress may contribute to worsening eczema and psoriasis symptoms in some people.
How can you calm stress-related flare-ups?
Many people focus on stress management, gentle skincare, sleep and reducing skin irritation.
Final Thoughts
The stress-eczema and stress-psoriasis connection is not vague or speculative — it operates through specific, documented pathways including the HPA axis and cortisol dysregulation, substance P and neurogenic histamine release, sleep disruption and barrier repair impairment, and gut permeability changes that amplify systemic inflammation. The bidirectional loop — where skin symptoms create the stress that worsens them — is one of the most important dynamics to recognise in managing either condition. The approaches with the most mechanistic grounding for breaking this cycle are breathwork, yoga, CBT, consistent exercise, and optimised sleep, alongside nutritional support for the specific nutrients stress depletes most.
Stress and skin health are deeply connected, which is why eczema and psoriasis often feel worse during emotionally or physically stressful periods.
While stress may not be the sole cause of flare-ups, it can strongly influence inflammation, itching, sleep and the skin barrier — all of which affect how reactive the skin becomes over time.
At Drought Skin- Skin Support Supplements, the goal is to support dry, sensitive and stressed skin from within alongside gentle skincare and supportive long-term lifestyle habits.
