5 year old son has large rash-like (welt) on both thighs with red outlined and the middle is normal skin color, he is coming off of a low grade fever for 4-5 days , nothing now.  He has had a cough for approx. 1 week.  Minor itching, no puss like, not pimple like, not small,
Hello. Thanks for writing to us at Chat Doctor I will keep a possibility of fungal infection/tines courts. The lesions are usually annular patches with red, scaly margin which extends peripherally and central clearing. Involvement of inner thighs is classical of fungal infection/Tina courts. Bilateral involvement is communicating/peeling is a feature in fungal infections. A KOH preparation made from the scale taken from the area can be scanned under the microscope for fungal elements and would be confirmatory of fungal infection. Itching is subjective in individuals and may be absent in early stages. I would suggest that you may use an OTC topical antifungal e.g. clotrimazole 1% cream, twice daily for 2-4 weeks the rash doesn't respond as expected Or if it worsens, you may visit a specialist dermatologist for a review. Regards