Sensitive baby skin vs eczema: how to tell the difference

Skin is our barrier against the elements, and babies’ skin is more delicate than that of older children and adults. It’s still developing, and is thinner and more porous. This means it loses moisture more easily, absorbs substances more readily, and is prone to dryness, irritation and infection. “The immune system of the skin as well as the skin microbiome are also still evolving,” says Dr Imraan Jhetam, a specialist dermatologist with rooms in Umhlanga and Ballito.

Rashes caused by heat, drool or unchanged nappies are considered normal, as are milia (tiny white bumps on the face soon after birth), baby acne (acne that appears before 6 weeks) and cradle cap (a scaly, greasy rash on the scalp).

What can be problematic are sensitive skin and eczema. Symptoms can overlap and misdiagnoses can be made in the early stages. Here’s how they differ:

How does sensitive skin differ to eczema?

Sensitive skin is reactive – it overreacts to environmental factors such as cold, dry outdoor air and indoor heating in winter (which strip its natural moisture), or to chemicals or friction, causing temporary redness, dryness, stinging, itching or tingling sensations. Rashes may develop, most commonly after contact with dry air, soaps, skin lotions or fabrics (especially wool or synthetics), which have fragrances, detergents, dyes or other ingredients that trigger an allergic reaction. “This does not cause long-term skin barrier issues, but ongoing skin irritation can lead to further skin barrier disruptions as it becomes a vicious cycle,” says Dr Jhetam.

Eczema (atopic dermatitis), on the other hand, is a chronic long-term inflammatory condition where the skin barrier is weak, causing persistent, intense itching and red, flaky patches that sometimes ooze. It often runs in families and is not contagious. It usually appears between three to six months of age, as the skin barrier reacts to environmental triggers such as drool, dry air, fabrics, chemicals or preservatives, or allergens such as mould, dust mites or animal dander, food allergies or stress. Heat and cold are among the top triggers listed by the Allergy Foundation of South Africa.

Appearance and symptoms

Sensitive skin is mildly red when exposed to irritants, with mild dry, scaly patches. It can affect any area of the body, and is often triggered by rubbing or clothing.

Eczema is characterised by skin that is dry, angrily inflamed, and sometimes cracked, mainly on the cheeks, chin, forehead and scalp in babies under six months, and in skin folds (elbows, knees) in those who are older. It typically produces a bumpy red rash and weeping or thickened scaley patches, and results in intense, chronic itchiness (it is sometimes called ‘the itch that rashes’), fussiness and crying in babies, disrupting sleep. Babies may persistently rub their skin against clothing or bedding to find relief from their distress. The raw, inflamed skin can be painful, especially if it cracks or becomes infected. 

Management and care

Sensitive skin is best treated by using gentle, fragrance-free, hypoallergenic soaps, lotions and detergents, and dressing baby in soft, breathable fabrics like cotton. “I often advise parents to ‘double rinse’ clothes to remove any washing detergent residues,” says Dr Jhetam.

Eczema management centres on maintaining a high moisture level in the skin by frequently applying thick, fragrance-free creams to exposed areas. “Those with ingredients like cetomacrogol, hyaluronic acid and ceramides can help lock in moisture and soothe itchy, dry skin,” says Dr Jhetam. Give baby short baths in lukewarm water, he suggests, and during flare-ups, apply topical corticosteroids prescribed by your healthcare professional for short periods (7-10 days). Keep baby’s nail trimmed or use mittens to prevent scratching and infection. Eczema is best diagnosed by an experienced dermatologist. “Misdiagnosis and delayed treatment will have an impact not only on the child’s physical health, but also and especially on the child’s psychological health,” notes a 2025 article in the journal Dermatologic Therapy. It adds that episodes of anxiety, depression, isolation and even bullying are not uncommon later,  “with negative consequences on the child’s future education and productivity. Therefore, it is important to identify atopic dermatitis from the early stages of life and choose the most suitable therapeutic approach.” There is no cure, says Dr Jhetam – work with your healthcare provider to develop a treatment plan based on your baby’s age, symptoms and their severity. 

When to get help

Sensitive skin should be seen by a healthcare provider if irritation persists for more than a week, spreads across the body, or causes intense itching and discomfort. Immediate medical advice is necessary if a rash is accompanied by a fever, pus, weeping, swelling, or if baby appears unwell, says Dr Jhetam. “They may have eczema or an infection.” 

Eczema needs professional care from the outset, especially if skin bleeds, oozes or shows signs of infection, such as yellow crusting, which can indicate a secondary infection. Prescription creams or antibiotics may be needed. “Early ‘proactive’ management helps to reduce disease severity, limits the progression of eczema and increases the likelihood of inducing remission,” he says.

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