The wound nurse who I beckoned to stand over my shoulder said, "that's not shingles." She said if those other things didn't work, she'd try an anti-fungal creme.
*My* theory (not hers) - wash your clothing better - if it's something from contact (you didn't see yourself get bit; just assumed it was a bite because there's a little hole?) it's possible that it was carried on clothing. E.g., if you brushed up against a poison ivy leaf, or it got into a boot, it would cause a similar looking rash over a small area. 2 months later, if you put that same boot on, those oils that cause poison ivy (poison oak, etc.) are still going to be there. That would also explain why it's a close overlap, but not perfect.
edit: doesn't look like a typical "bad" case of poison ivy, but I get into the stuff enough times (got some on my arms now from doing some fencing last week) that yes, it kind of looks like a very mild exposure.