Allergies and Eczema in Toddlers

Two conditions that travel together and are not the same

Eczema and food allergy are both common in early childhood, they are more likely to occur in the same child than chance would predict, and they get conflated constantly. They are separate diagnoses with separate management, and treating one as a symptom of the other is where most of the frustration comes from.

The NHS describes atopic eczema as affecting people of all ages but "most common in young children", with symptoms that "usually start in babies and young children and tend to get better as they get older."

Eczema: the treatment is moisturiser, in quantities that feel excessive

Emollients are the foundation and the part most often underdone. The NHS advises applying moisturising treatments "as often as possible (at least 2 times a day)" and to "continue to moisturise even if your eczema improves." The HSE goes further for children, advising that you moisturise your child's skin as often as possible, at least 3 or 4 times every day.

Continuing when the skin looks fine is the instruction most families drop, and it is the one that prevents the next flare. Emollient is not a treatment you stop when it works.

The NHS also advises washing with an emollient instead of soap, since soap strips the skin barrier that emollient is there to rebuild. And it gives a safety warning that is easy to overlook: "do not smoke or go near naked flames if you use an emollient", because emollient residue on fabric and dressings is flammable.

Steroid creams

The NHS lists topical corticosteroids — "steroid creams, lotions or gels you apply to your skin" — as a main treatment for flares alongside emollients. The pattern that causes trouble is using too little for too short a time out of anxiety about steroids, which leaves the flare smouldering and leads to more steroid use overall rather than less.

Use the strength your GP prescribed, for the length of time they specified, on the areas they specified, and go back if it is not working rather than eking out a tube that is not strong enough. NICE's guideline CG57 covers diagnosis and management of atopic eczema in children under 12 and is what your clinician is working from, including the stepped approach to treatment strength.

Triggers, and how to actually find one

The NHS advises avoiding things that make eczema worse, "such as soap, washing detergent, some fabrics or pets", and lists heat, temperature changes and infections among the triggers. Wool and rough synthetics next to the skin, biological detergents, fabric softener, overheated bedrooms and long hot baths are the common domestic culprits.

Finding a trigger requires changing one thing at a time and giving it a fortnight. Changing five things at once tells you nothing, and a flare that coincides with a new food is more often a coincidence than a cause — toddler eczema fluctuates on its own.

Food allergy: what a real one looks like

The NHS separates two patterns, and the distinction drives everything that follows. Immediate reactions come on within minutes to about two hours of eating and typically involve hives or a raised itchy rash, swelling of the face, lips or eyes, itching in the mouth, vomiting, wheeze or difficulty breathing. Delayed reactions come on hours later and look quite different — worsening eczema, reflux, vomiting, diarrhoea, constipation or poor growth.

Anaphylaxis is the emergency version: difficulty breathing, swelling of the throat or tongue, sudden collapse, or a child who becomes floppy and unresponsive. That is a 999 call, not a GP appointment.

Why NICE is cautious about tests

NICE's guideline CG116 covers the assessment and diagnosis of food allergy in under-19s, and the principle running through it is that diagnosis starts with an allergy-focused clinical history rather than with testing. Tests are chosen and interpreted in the light of that history.

The practical consequence is important for parents. Skin prick tests and specific IgE blood tests can show sensitisation without clinical allergy, so a positive result in a child who happily eats the food does not mean they must stop eating it. Running a broad panel of tests without a history is a reliable route to unnecessary exclusion diets, which carry their own nutritional cost in a toddler. The NHS makes the same point about commercial allergy tests sold direct to the public, which are not a substitute for proper assessment.

Keep a record before the appointment

The most useful thing you can bring to a GP is a plain record: what was eaten, how much, how it was cooked, how long afterwards symptoms appeared, what the symptoms were, how long they lasted, and whether the same food has been eaten before or since without a problem. Photographs of rashes and swelling are genuinely helpful, because the reaction will have gone by the time you are seen.

Do not eliminate a major food from a toddler's diet indefinitely on suspicion alone. Milk, egg and wheat carry real nutritional weight at this age, and reintroduction after a long unsupervised exclusion can be more risky than continuing. If a food genuinely needs excluding, ask for dietetic input.

Living with both at nursery

If your child has a diagnosed food allergy, the setting needs it in writing: what the food is, what a reaction looks like, what to do, and where the medication is kept. If they have been prescribed adrenaline auto-injectors, everyone likely to be with your child should have been shown how and when to use one, and the devices need to be in date and accessible rather than locked away.

For eczema, a note about which emollient to use and when saves a great deal of dry skin, and letting staff apply it after water play is worth asking for.

When to see someone

The NHS advises seeing a GP if you or your child have symptoms of atopic eczema, or if treatments are not helping, and asking for an urgent appointment if the eczema looks infected or worsens suddenly. Signs of infection include weeping, yellow crusting, painful skin, a rapid deterioration or a fever alongside a flare.

For allergy, see a GP about any suspected food reaction so it can be assessed properly, and call 999 for breathing difficulty, throat or tongue swelling, or collapse. The AAP's guidance on eczema in babies and children makes the same broad point that most children improve with age — but improvement is helped considerably by treating properly in the meantime rather than waiting it out.