Nappy rash (irritant napkin dermatitis) is one of the most common skin problems in infancy. Nearly every baby will experience it at some point — but with the right prevention and treatment, it can be kept mild and short-lived.

What Causes Nappy Rash?

The primary cause is prolonged contact of the skin with urine and faeces in a warm, wet, enclosed environment. Urine raises skin pH, making it more susceptible to enzyme damage from faecal proteases and lipases. Friction from the nappy worsens the irritation. A secondary Candida (thrush) infection frequently complicates nappy rash — particularly if it persists beyond a week or doesn’t respond to standard treatment. Distinguishing features of candidal nappy rash: bright red, well-defined border, satellite spots (small red spots beyond the main rash area).

Prevention

  • Change nappies frequently — every 2–3 hours during the day for young babies, as soon as soiled
  • Clean the nappy area gently with cotton wool and water, or fragrance-free baby wipes
  • Pat dry completely before applying a new nappy — moisture under a nappy cream traps it against the skin
  • Apply a barrier cream at every nappy change, not just when rash appears
  • Allow nappy-free time where possible — letting the skin air

Treatment: Standard Nappy Rash

Zinc oxide creams — the workhorse of nappy rash treatment. Sudocrem (15.25% zinc oxide) and Metanium (titanium salts, zinc) are both highly effective. Apply a thick layer — it acts as a physical barrier. Bepanthen (dexpanthenol) — promotes healing rather than purely acting as a barrier. Excellent for sensitive or healing skin. Drapolene cream — contains benzalkonium chloride (antiseptic) and cetrimide. Good for rash complicated by minor infection.

Treatment: Candidal Nappy Rash

If the rash is bright red with satellite spots and hasn’t responded to standard barrier creams after 3–4 days, suspect Candida. Antifungal cream (clotrimazole 1% — Canesten) applied 2–3 times daily for 7–14 days usually clears it. Continue barrier cream alongside. If a combination product (antifungal + mild steroid) is needed, see a GP.

Shop Nappy Rash Creams at Chemist 2 Customer including Sudocrem, Metanium, Bepanthen and Drapolene. Related: Skincare Guide.