Treatment for bacterial nappy rash

A small, localised infection may be treated differently from redness that is spreading or accompanied by fever. The clinician also checks for yeast and irritant dermatitis because each needs a different approach.

Raw skin exposed to stool, urine and friction is easier for bacteria to enter. Yellow crust, oozing, pus-filled spots, blisters, tenderness or redness moving outside the nappy area may suggest bacterial involvement.

The visible pattern does not always identify the germ. A clinician may swab discharge when the rash is severe, recurrent or not improving. The result can help refine antibiotic choice, while suspected yeast is treated with an antifungal rather than an antibiotic.

Replace nappies soon after wetting or soiling and wash hands before and after every change. Use lukewarm water, avoid rubbing, and leave the area open to air briefly. A plain barrier ointment can shield intact or mildly irritated skin from further contact.

Give prescribed medicine in the amount, location and schedule shown on its label. Do not stop early because the skin looks calmer, and do not add a steroid, antifungal or antiseptic unless advised. Clean the changing surface and keep towels separate while there are open or weeping areas.

Seek urgent assessment if your baby has fever, is hard to wake, feeds poorly, has fewer wet nappies, seems in significant pain, or develops rapidly expanding redness, swelling, blisters or darkened skin. Do not wait for a scheduled follow-up if the baby appears generally unwell.

Contact the treating clinician when prescribed therapy causes swelling, hives, breathing difficulty, vomiting or a marked new rash; breathing difficulty is an emergency. Also request review if infection continues to spread or fails to improve as expected.

Confirm whether the medicine goes on every red area or only infected spots, how it fits around nappy changes, and whether barrier ointment can be layered with it. Ask how improvement should look and when the baby should be examined again.