What should you know about diaper rash and thrush?

A yeast-related nappy rash may be a strong red colour, involve the skin folds, and have small separate spots around the main area. Thrush in the mouth can cause creamy white patches that do not wipe away easily, with feeding discomfort in some babies. These signs are clues, not a diagnosis. Irritation from stool, moisture, or products can produce soreness without yeast, while more than one problem can occur together.

Change nappies promptly, rinse gently, pat dry, and allow short periods without a nappy when practical. Wash hands after changes and keep creams and towels from being shared between children. A clinician or pharmacist may recommend [Topical Antifungal Treatment](/treatments/medical-dermatology/topical-antifungal-therapy/) for a yeast rash and separate treatment for mouth thrush. A protective [Emollient Therapy](/treatments/medical-dermatology/emollient-therapy/) plan can reduce friction, but it does not replace treatment for yeast.

Seek medical advice if mouth patches affect feeding, the rash is painful or spreading, or the skin is cracked, bleeding, blistered, or producing fluid. Get urgent help if the baby has fever, seems unusually sleepy, feeds poorly, or has fewer wet nappies. If symptoms return after treatment, the clinician may need to review the diagnosis, application technique, or possible reinfection.

Ask whether both mouth and nappy symptoms need treatment, how to apply each medicine, and how to clean feeding equipment. Mention recent antibiotics, breastfeeding or bottle-feeding, and whether anyone else has symptoms.