Nappy Rash

What is nappy rash?

Nappy rash is a common skin condition that affects babies in the nappy area. It causes red, sore patches on your baby's bottom or the whole nappy area. The skin may look hot, feel rough or scaly, and your baby may seem uncomfortable or distressed.

What causes nappy rash?

Nappy rash is usually caused by:

• Prolonged contact with wee or poo in the nappy
• Not changing nappies often enough
• Friction from the nappy rubbing against the skin
• Reactions to fragranced soaps, baby wipes containing alcohol, or bubble bath
• Certain medications like antibiotics
• A thrush (fungal) infection

How to treat nappy rash at home

Most cases of nappy rash can be treated at home with simple measures:

• Change wet or dirty nappies as soon as possible
• Clean your baby's skin gently with water or fragrance-free, alcohol-free baby wipes
• Pat the skin dry rather than rubbing
• Leave the nappy off when you can to let air get to the skin
• Use a barrier cream at each nappy change
• Make sure nappies fit properly and aren't too tight
• Bathe your baby once a day (avoid more than twice daily)

Avoid using soaps, lotions, bubble bath, talcum powder, or antiseptics on the nappy area.

When to see your GP

See your GP or health visitor if:

• The rash doesn't improve after a week of home treatment
• The rash gets worse or spreads
• Your baby develops a fever
• Your baby seems very uncomfortable or distressed
• You notice blisters or pus-filled spots

Your GP may prescribe a steroid cream for redness and soreness, an antifungal cream for thrush, or antibiotics if there's a bacterial infection.

Based on NHS information. Last reviewed January 2026.