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Skin & hair

How to Treat an Eczema Flare: Relief Steps, Red Flags, and When to Get Help

To calm an eczema flare, apply a thick fragrance-free emollient right after a lukewarm shower, keep nails short, and remove obvious triggers. Use a prescription topical steroid as previously directed if the flare matches your usual pattern. Seek care promptly for severe flares, signs of infection, or widespread involvement.

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What is happening during a flare

Atopic dermatitis is a chronic inflammatory skin condition in which the skin barrier is structurally weakened and the immune system overreacts to triggers. During a flare, inflammation causes blood vessels to dilate (redness), nerves to become sensitized (itch), and the barrier to break down further — leading to dryness, cracking, and sometimes weeping. The itch-scratch cycle is central: scratching briefly relieves itch but damages the skin further, worsening inflammation and opening the skin to infection.

Flares can be triggered or worsened by: - New products, laundry detergents, soaps, or fabrics - Cold, dry air or central heating - Sweat and heat - Stress and sleep deprivation - Skin infections (particularly Staphylococcus aureus, which colonizes eczema skin and perpetuates inflammation) - Illness

If a flare seems to have started from nowhere, consider any change in the past few weeks to products, environment, or health.

Immediate steps to calm a flare at home

The foundation of flare management is consistent, aggressive moisturizing. Evidence from a Cochrane systematic review supports emollients as effective in reducing eczema flare severity and frequency when used regularly 1.

Key steps:

  • Apply a thick, fragrance-free emollient (petrolatum, or a ceramide-rich cream) immediately after bathing while skin is still slightly damp. Do this at least twice daily during a flare — more often on the driest areas.
  • Take short (under ten minutes) lukewarm showers. Hot water strips barrier oils and intensifies itch.
  • Wear soft, breathable cotton clothing. Avoid wool or synthetics directly on inflamed skin.
  • Keep nails short to minimize skin damage from nighttime scratching.
  • Identify and remove any obvious triggers — a new soap, detergent, or product introduced in the past two to four weeks.

AAD topical management guidelines reinforce moisturization as the cornerstone of both flare treatment and maintenance therapy for atopic dermatitis 2.

When to use topical steroids — and when to ask for more

Topical corticosteroids are the most commonly prescribed treatment for eczema flares and work by suppressing local inflammation. If you have a previously prescribed topical steroid and the current flare looks like your usual pattern, using it as directed before is reasonable: apply to inflamed areas (not clear skin), and continue until redness and itch resolve — typically several days to two weeks, depending on the steroid strength.

Important cautions: Do not apply a topical steroid near the eyes, on the face long-term, or across large body surface areas without clinician guidance. Facial skin requires lower-potency steroids.

If you do not have a current prescription, this flare is worse than usual, or it is not responding within a week or two of consistent care, contact a clinician. The treatment landscape for eczema has expanded significantly:

  • Topical calcineurin inhibitors (tacrolimus, pimecrolimus) — steroid-sparing options appropriate for the face and skin folds.
  • Topical JAK inhibitors (ruxolitinib cream) — a newer class with strong evidence for moderate eczema.
  • Injectable biologics (dupilumab and others) — for moderate-to-severe atopic dermatitis that does not respond adequately to topicals 2.

A clinician can assess your flare severity and pattern and select the right step-up therapy.

Recognizing infection during a flare

One of the most important things to watch for during a flare is secondary infection. When the skin is cracked and inflamed, bacteria — usually Staphylococcus aureus — can enter and significantly worsen the flare. Signs of infected eczema include:

  • Honey-colored or yellow crusting that looks like a scab without an injury
  • Weeping or oozing disproportionate to the usual itch
  • Warmth, swelling, and tenderness in the area
  • Sometimes an odor

Infected eczema does not respond well to steroids alone — antibiotic treatment is needed.

Eczema herpeticum is a less common but serious complication: herpes simplex virus infects already-inflamed eczema skin, causing painful clusters of small blisters, often with fever. This spreads rapidly and requires prompt antiviral treatment. It is a medical urgency — see care the same day if you notice this pattern.

Common questions

How do I stop eczema itch at night?

Short lukewarm shower before bed followed by immediate emollient application reduces overnight itch significantly. Keeping the room cool and sleeping in cotton bedding helps. Keeping nails trimmed limits damage from scratching during sleep. A clinician can also discuss non-sedating antihistamines or, if the flare is severe enough, short-term sedating options for sleep disruption — though antihistamines do not treat the underlying itch of eczema.

What are common eczema triggers I might be missing?

Common overlooked triggers include fragrance (present in many 'unscented' products — look for 'fragrance-free'), preservatives like methylisothiazolinone, new laundry detergents, fabric softeners, wool or synthetic fabrics, stress, and hard water. Seasonal change — particularly cold dry winter air — is one of the most reliable triggers.

What does infected eczema look like?

Honey-colored or yellowish crusting on top of inflamed skin, oozing that seems more than your usual flare, increasing warmth and swelling in the area, or worsening that does not respond to your usual moisturizing or steroid. If you see these signs, contact a clinician — infected eczema needs antibiotic treatment, not just more topical steroid.

Are there newer treatments for eczema beyond topical steroids?

Yes, the options have expanded considerably. Topical calcineurin inhibitors and JAK inhibitors are alternatives to steroids, particularly useful on the face and for long-term maintenance. For moderate-to-severe eczema, injectable biologics like dupilumab have strong evidence and are FDA-approved for adults and older children. A dermatologist can assess whether these are appropriate for your pattern and severity.

When should I go to urgent care for an eczema flare?

Go to urgent care or the emergency department if you have fever with spreading skin redness and warmth, if you notice painful blistering clusters on inflamed skin (possible eczema herpeticum), or if the flare is covering most of the body and causing fever or significant systemic symptoms. For a typical severe flare without these signs, a same-day or next-day clinician appointment is more appropriate than the emergency department.

Talk to a clinician

Nina Osei, NP — Nurse Practitioner

checkups, refills & skin. Gale can match you with a licensed clinician for a visit.

Find care →

Signs an eczema flare needs prompt clinical care

  • —Honey-colored crusting, pus, warm swollen skin, or rapidly spreading redness — signs of bacterial skin infection requiring antibiotic treatment
  • —Flu-like symptoms, fever, or chills during a flare — may indicate a spreading skin infection needing urgent care
  • —Small clustered painful blisters resembling cold sores, especially on already-inflamed eczema skin — possible eczema herpeticum, requiring prompt antiviral treatment
  • —Eczema covering most of the body, causing multiple nights of lost sleep, or significantly impairing function
  • —A flare in an infant under three months old involving large areas of the body

If you have fever with spreading skin redness and warmth, or notice painful blistering clusters on already-inflamed eczema skin, go to urgent care or the emergency department today rather than waiting for a routine appointment.

This article is general information about managing eczema flares. It is not a substitute for clinical evaluation, particularly if the flare is severe, shows signs of infection, or is not responding to prior treatment. A licensed clinician can assess your skin and provide a personalized treatment plan.

References

  1. 1.van Zuuren EJ, Fedorowicz Z, Christensen R, Lavrijsen A, Arents BWM (2017). Emollients and moisturisers for eczema. Cochrane Database of Systematic Reviews. doi:10.1002/14651858.CD012119.pub2 ✓Emollients and moisturizers as evidence-backed interventions that reduce eczema flare severity and frequency when used consistently
  2. 2.Sidbury R, Alikhan A, Bercovitch L, Cohen DE, Darr JM, Drucker AM, Eichenfield LF, Frazer-Green L, Paller AS, Schwarzenberger K, Silverberg JI, Singh AM, Wu PA, Davis DMR (2023). Guidelines of care for the management of atopic dermatitis in adults with topical therapies. Journal of the American Academy of Dermatology. doi:10.1016/j.jaad.2022.12.029 ✓AAD clinical guidelines on topical corticosteroids, calcineurin inhibitors, JAK inhibitors, and biologics as the treatment ladder for atopic dermatitis flares
  3. 3.Fonacier L, Noor I (2018). Contact dermatitis and patch testing for the allergist. Annals of Allergy, Asthma & Immunology. doi:10.1016/j.anai.2018.03.003 ✓Contact allergen identification as a cause of eczema-like flares and the role of patch testing when a new trigger is suspected

3 sources, numbered by first appearance. General health information, not medical advice — synthetic demonstration content.