When is oral antifungal treatment recommended for tinea incognito?

Tinea incognito is ringworm whose appearance has been altered by a steroid cream or another immune-suppressing product. The border may be less obvious while the rash spreads, becomes uneven, or develops small bumps and pustules. The clinician needs to know which products were used and for how long. Examination, skin scraping, or another test may be useful because eczema and other inflammatory rashes can look similar.

Arrange an assessment and take the cream or product container, or a photograph of its label, to the appointment. Do not restart a steroid on the area unless directed. If an oral antifungal is prescribed, follow the dosing instructions and disclose all medicines, supplements, liver problems, allergies, and pregnancy or breastfeeding. Keep the area dry, avoid sharing towels or clothing, and wash fabrics that contact the rash. Improvement in scaling may come before the skin colour looks normal.

Seek prompt evaluation if the rash is spreading quickly, painful, hot, swollen, draining, or accompanied by fever. Contact the prescriber urgently for facial swelling, breathing difficulty, yellowing of the skin or eyes, dark urine, or a severe rash after an oral medicine.

Ask whether the steroid should be stopped or tapered, whether testing is needed, why an oral medicine is suitable, and how to distinguish ongoing fungus from lingering inflammation.