Maybe an 1/8" or smaller
Tender in that area
It wasn't there the night before and appeared in the morning. No under the skin lumps were felt the night before.
It was on top of the skin as opposed to under the skin. No ulcer afterwards.
My outbreaks start with numbness/tingling, then change to cluster bumps under the skin that feel like hard lumps, then to the blister stage and breaking open, leaving the ulcers to heal.