My thoughts are this: once you find out that the biopsy showed nothing in particular (and I predict that's what it will show), you should stop all treatments, cortisones, fungal creams, and what have you. Moisturize the skin daily with a bland lotion (like Vaseline Intensive Care.) Powder daily with baby powder. And stop thinking about your
groinGroin lump
Groin pain
Groin stretch
Jock itch
Swollen lymph nodes in the groin. Thinking about a part of the body makes it tingle. No good can come of all this attention, once treatment failures have shown that you haven't got yeast or seborrhea, only (at most) chafing.
Best.
Dr. Rockoff