Fit health 54 year old male.
No medication or medical conditions.
No resent stress
No history of psoriasis or eczema
Rash appeared on lower leg 2 months ago. No other part of body involved.
Has had a course of antibiotics from GP which have had no effect.
Is this fungal
I would say that it has a scaly leading edge similar to tinea. I would take a fungal scraping, treat as tinea, and if it doesn’t get better, biopsy. I suppose Bowen’s disease or mycosis fungoides is a possibility.