Dermatologist confirmed eczema. I'm posting in the event any other men have similar symptoms. It could certainly be eczema, which my derma. said is easily treated.
Yeast is an uncommon cause of the sort of penile symptoms you describe--and if you had a yeast infection, it probably would have cleared up quickly and completely on tioconazole. You can rely on the negative HSV blood tests, so that's not a worry. Perhaps it's not an infection at all, but eczema, lichen planus, allergy, or any number of other skin conditions. At this point, you need to see a health care provider, perhaps a dermatologist.
Good luck-- HHH, MD