Baby Eczema: Causes, Triggers & the Best UK Treatments

Eczema (atopic dermatitis) is the UK's most common childhood skin condition, affecting up to 1 in 5 children at some point. It's particularly common in babies, often first appearing between 2 and 6 months of age.

The good news: most babies with eczema see significant improvement by school age. With the right management, you can keep your baby comfortable and reduce flare-ups dramatically.

What does baby eczema look like?

In babies:

• Dry, red, itchy, scaly patches
• Most commonly on cheeks and scalp in young babies
• On the creases of elbows and knees as baby grows
• Can look wet/weepy when it flares (secondary infection possible)
• Skin may thicken over time in repeatedly affected areas

It often comes and goes — a period of clear skin followed by a flare triggered by something specific.

What causes eczema?

Eczema is caused by a combination of:

Genetics: Strong family history — if one parent has eczema, asthma, or hay fever, a baby has a 40–60% chance of developing eczema. If both parents have atopic conditions, the risk rises to ~80%.

Skin barrier dysfunction: Babies with eczema have a weaker outer skin barrier that allows moisture to escape and irritants to get in more easily. A genetic mutation in the protein filaggrin (which builds the skin barrier) is found in many eczema sufferers.

Immune system response: The immune system overreacts to harmless substances, causing inflammation.

Common triggers

• Dry air — especially in winter with central heating
• Overheating — sweating irritates eczema
• Soaps, bubble baths, and fragranced products — strips skin's natural oils
• Rough or synthetic fabrics — wool and polyester are common culprits
• Pet dander
• Dust mites — particularly in bedding
• Drool and food — around the mouth during weaning
• Stress or illness — immune activation can trigger flares

The cornerstone of eczema management: emollients

Emollients (moisturisers) are the most important eczema treatment. They:

• Replace lost moisture
• Repair and strengthen the skin barrier
• Reduce itch and flare frequency

Prescribable emollients on the NHS include:

• Diprobase Cream
• Doublebase Gel
• Aveeno Baby (now available on prescription)
• Zerobase

Apply liberally and frequently — at least twice daily, and after every bath. The rule of thumb: at least 250g per week for a young baby with significant eczema.

Apply like sunscreen, not like moisturiser — smooth downward in the direction of hair growth rather than rubbing in circles (which causes friction and irritates).

Bath routine for eczema

1. Lukewarm water only — hot water dries and irritates
2. Short baths — 5–10 minutes maximum
3. Use a soap substitute (emollient wash) rather than soap — ask your GP or pharmacist. Dermol 500, Oilatum, or aqueous cream as a wash
4. Pat dry gently — don't rub
5. Apply emollient immediately after drying — within 3 minutes while pores are open

When to use topical steroid cream

Topical steroids (like hydrocortisone 1%) are used for flares — red, inflamed, itchy eczema. They're not for daily use but are safe and effective when used correctly:

• Apply thinly to affected areas only
• Don't use on the face without GP guidance
• Use for the prescribed duration (usually 5–7 days)
• Continue emollient even while using steroids

Many parents are concerned about steroid creams — but used correctly, they're safe and the risk of undertreated eczema (infection, sleep disruption, misery) is greater than the risk of appropriate steroid use.

When to see your GP

• Baby is scratching constantly and visibly distressed
• Skin looks wet, weepy, or crusty (possible infection — may need antibiotics)
• Sleep is severely disrupted by itching
• Rash spreads rapidly or looks infected
• Eczema isn't responding to emollients and over-the-counter creams

For severe eczema, your GP may refer to a paediatric dermatologist or specialist allergy team.

Could it be a food allergy?

Food allergy can be associated with eczema, but most baby eczema is not caused by food allergy. If you suspect a link (e.g., eczema worsens after introducing a specific food), keep a food and symptom diary and discuss with your GP.

Don't self-restrict foods without medical advice — cutting out dairy or other foods without professional guidance can compromise nutrition.

Practical tips for daily life

• Use non-bio washing powder and avoid fabric softener
• Keep fingernails short to reduce scratch damage
• Scratch mitts for young babies at night (with supervision)
• Bamboo or cotton clothing — avoid wool and synthetic fabrics
• Keep the bedroom cool — 18–20°C
• Vacuum regularly and use dust mite protectors on mattresses