Stepped on a toothpick in December, urgent care got as much of it out as they could. This finally popped yesterday while I was checking on the "healed" puncture site. Sweet relief.
TL;DR - a formerly benign cyst went haywire when my immune system ramped up to fight covid. Had it lanced, then I was allergic to the antibacterial infused bandaids I bought to cover it. I'm in hell.