Over-the-counter antifungal for ringworm

Ringworm is a contagious fungal infection that can form an expanding, scaly or itchy patch with a more active edge. Other rashes can look similar, so a circle alone does not confirm the cause. Compare the appearance with [Ringworm](/conditions/ringworm/), [Skin Rash](/symptoms/skin-rash/) and [Scaly Skin](/symptoms/skin-scaling/), but use a clinical examination when the pattern is unclear. Steroid-only creams can disguise fungal inflammation and allow it to spread.

Choose a product labelled for fungal skin infection and apply it exactly as directed to clean, dry skin, including the surrounding margin if the label advises this. Wash hands before and after application, keep the area dry, change damp clothing, and do not share towels, clothing or razors. Avoid covering the area tightly unless instructed. Continue for the label’s full course even if the itch settles early. A clinician may recommend [Topical Antifungal Treatment](/treatments/medical-dermatology/topical-antifungal-therapy/) or another approach after checking the site and extent.

Arrange a review if the rash involves the scalp, beard area, nails, face, genitals or a large area, or if it is worsening, painful, draining or not improving with correct use. Children, people with reduced immunity and people with diabetes may need earlier assessment. Widespread or hard-to-treat infection can require [Oral Antifungal Treatment](/treatments/medical-dermatology/oral-antifungal-therapy/). Seek urgent care for fever with rapidly spreading redness or severe swelling.

Does this rash look fungal, or should it be tested? Which active ingredient and duration suit its location? Should household contacts, pets or shared fabrics be checked?