What should you know about ringworm starting out?

The first sign can be a patch of itch, dryness, fine scale, or colour change on the trunk, arm, or leg. The edge may be easier to feel than to see, especially on darker skin. Over time, the border may extend outward and the centre may look less irritated. Early appearance is variable, so a new patch is not automatically ringworm.

Compare the area with the surrounding skin without repeatedly rubbing it. A [Skin Rash](/symptoms/skin-rash/) or [Scaly Skin](/symptoms/skin-scaling/) page can help you describe what you see, but a clinician is needed when the diagnosis is uncertain.

Keep the patch clean and dry, change out of sweaty clothing, and avoid sharing towels, clothing, sports gear, or bedding. Wash hands after touching the area. Do not scratch, scrape, or apply strong irritants. Avoid using a steroid cream on your own for a suspected fungal rash because it may make the pattern less recognisable.

For a clinician-confirmed or pharmacist-advised case, use [Topical Antifungal Treatment](/treatments/medical-dermatology/topical-antifungal-therapy/) as labelled. If the rash is extensive or does not respond, medical review may lead to [Oral Antifungal Treatment](/treatments/medical-dermatology/oral-antifungal-therapy/).

Book an assessment if the patch enlarges, becomes painful, cracks, oozes, or persists despite appropriate care. Seek prompt help for rapidly spreading redness, fever, facial swelling, or a rash close to the eye. Early advice is also sensible when a child, pregnant person, or someone with reduced immune defences develops a spreading rash.

Ask whether the edge looks fungal, whether a scraping is useful, which product suits the body site, and how to reduce transfer to family members. Tell the clinician about pets, gym contact, and any products already applied.