So sorry to hear about your GD diagnosis. Our MD prescribed steroid based cream and ointment, and we supplement with Gold Bond anti-itch and eczema lotions. My wife initially had outbreaks in breast area, and now has spread to other parts of body- I sincerely hope yours stays confined to the one area. Another possible treatment that may be the best is UV light treatment- after 10-12 treatments it is significantly abated if not gone.
My wife and I contracted GD from some external unknown source, and has confounded 3 different Dermatologist. We are scheduling the light treatment in the coming weeks.