Penis gland skin disorder undiagnosed

I am trying to find a diagnosis for this apparently rare glans skin disorder have seen a dozen doctors both urologist and dermatologist none know what it is. If anyone could help please do. SYMPTOMS in beginning was red itchy and burned over time that has gone becomes dry and a crust develops which turns a yellowish color to eventually fall off with the underneath skin very red only to repeat cycle this has been on going for over a year TREATMENTS antibiotic and antifungal creams and oral doses anti inflammatories/steroid

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lotions and creams[](https://) Nothing helps??? PLEASE HELP

You should go for a biopsy