What should you know about Cavilon for nappy rash?

Nappy rash develops when delicate skin is exposed to wetness, stool, urine, friction, or irritants. A barrier film forms a thin layer over clean, dry skin, helping reduce direct contact with those triggers. It is supportive care, not a diagnosis: a rash may instead involve yeast, allergy, infection, or another skin condition. The product label and a pharmacist or clinician can clarify whether the formulation is suitable for your baby’s age and affected area.

Change wet or soiled nappies promptly, rinse or clean gently, and pat rather than rub. Allow the skin to dry before applying the film exactly as directed; avoid the eyes, mouth, and broken or infected-looking skin unless a clinician advises otherwise. Give the area short periods without a nappy when practical, and avoid fragranced wipes, soaps, and powders that sting or dry the skin. If the rash needs a moisturising barrier, ask about [Emollient Therapy](/treatments/medical-dermatology/emollient-therapy/). Do not layer products casually, because some combinations can interfere with the film.

Ask a clinician to assess a rash that is severe, spreading, blistered, weeping, bleeding, or associated with fever or marked discomfort. Seek advice if the baby seems unwell, feeding poorly, or has sores outside the nappy area. A rash that does not improve with gentle care, or one with small satellite spots in the folds, may need a different treatment such as [Topical Antifungal Treatment](/treatments/medical-dermatology/topical-antifungal-therapy/).

Ask whether the rash looks like irritant dermatitis or yeast, whether Cavilon is appropriate for the baby’s age and skin condition, and which areas should be avoided. Confirm application frequency, cleansing between applications, signs of allergy, and when to stop the product and seek review.