How to prevent cradle cap

Cradle cap is infantile seborrheic dermatitis, a type of scaling rash that commonly affects the scalp. It is not a sign that a baby's scalp is dirty. Normal skin oil and the skin's response to it can contribute to flakes, so vigorous scrubbing is not a useful prevention method.

Wash the scalp with a mild baby cleanser as part of a regular routine, using fingertips rather than nails. Rinse away product and pat the head dry instead of rubbing. If early scale appears, a plain emollient can soften it before washing; remove only what comes away easily. Avoid tight hats, fragranced products, essential oils and repeated picking, all of which may irritate delicate skin. If scale keeps returning or becomes inflamed, ask about topical antifungal treatment rather than trying several products at once.

Contact a clinician if prevention measures do not help and the rash is spreading, intensely red, cracked, bleeding, wet, crusted, or uncomfortable. Prompt advice is also sensible when the baby has fever, seems unusually tired, or the skin around the rash looks infected. These features can point to a problem other than uncomplicated cradle cap.

Ask how often to wash the scalp, which ingredients to avoid, and whether an emollient is appropriate for your baby. Mention any family history of eczema, the areas involved, and whether the rash changes after a product is used.