What is eczema?
Atopic eczema (atopic dermatitis) is a chronic, relapsing inflammatory skin condition. It affects roughly 1 in 5 Irish children and 1 in 12 adults per HSE estimates. It is part of the "atopic triad" alongside asthma and hay fever — these conditions often run together in families. Most childhood eczema improves with age but can persist into adulthood; adult-onset eczema is also increasingly recognised.
Symptoms and pattern
- Itching — often the most distressing symptom, worse at night
- Dry, scaly skin patches — typically in skin folds (elbow creases, behind knees, neck, behind ears)
- Red or inflamed areas, sometimes weeping or crusting during flares
- Skin thickening (lichenification) from chronic scratching
- Sleep disruption and impact on mood
- Babies often present on face and scalp; older children/adults on flexures
Common triggers
Per NICE CKS:
- Skin irritants — soaps, bubble bath, detergents, fragranced products
- Heat and sweating — including overheating from too many bed covers
- Fabrics — wool, synthetics often irritate; cotton is gentler
- Stress
- Viral and bacterial infections — can trigger flares
- Aeroallergens — dust mites, pollen, animal dander (in some patients)
- Food allergens — only in a minority of young children (typically milk, egg, peanut); routine elimination diets not recommended without confirmed allergy
Treatment — the stepped approach
Per NICE and HSE guidance:
1. Daily emollients (foundation)
The single most important intervention. Apply generously (think "litres a week" for severe cases) several times a day, even when skin looks clear. Use as soap substitute. Different formulations suit different people — ointment is greasiest and most effective but cosmetically heavier; creams are lighter.
2. Topical corticosteroids (flares)
Used in courses during flares — short, decisive treatment is more effective and safer than prolonged weak treatment:
- Mild (hydrocortisone 1%) — face, genitals, infants
- Moderate (clobetasone) — body folds, mild-moderate eczema
- Potent (mometasone, betamethasone) — body, severe flares, short courses
Apply once-twice daily for typically 7-14 days during a flare. Used appropriately, topical steroids are safe — concerns about skin thinning relate to long-term continuous use of strong steroids on thin skin.
3. Topical calcineurin inhibitors
Tacrolimus or pimecrolimus — steroid-sparing options useful for face or long-term use.
4. Add-ons
- Antihistamines for itch-related sleep disturbance
- Antibiotic treatment for confirmed bacterial superinfection
- Wet wraps for severe flares (under specialist guidance)
- Specialist referral for severe or refractory eczema — phototherapy, systemic agents (dupilumab and others)
Infection — important to recognise
Eczema can become bacterially infected (gold-yellow crusting, increased redness, weeping, fever) or virally infected — particularly eczema herpeticum (small painful blisters, fever, generally unwell) which is a medical urgency. Eczema herpeticum needs same-day in-person care and oral antiviral treatment.
Online Doctor consultation
An eczema consultation covers: severity assessment via photo, prescription of appropriate emollients and topical steroids, advice on routine, identifying triggers, and referral pathway if severity warrants. For suspected infection (especially eczema herpeticum), in-person assessment is appropriate.