Weed killer

Creeping Charlie is the worst. I had it as well years ago and sprayed my whole lawn...every stitch of grass was dead...DEAD..it still came back. It is the root system that plant has that makes it a bad one to get rid of.
I find in the spots were it comes back if it starts to flower put them fast....even if you cant get the weed out at least remove the flower to stop them from spreading.
Good luck Snake I feel your pain LOL
AL