The outer edge of your foot is a common place to get corns. Your pinky toe area is also very susceptible.
This is because the entire area is flexible and is exposed to a ton of pressure when you walk.
In this corn removal, I take out a corn a few cm's under the pinkie toe. It was nice and dry and popped out easily.
It wasn't hugely painful at this stage but would have been in a few weeks.
This foot corn was probably just on the edge of home treatment. You'd have to be dedicated, however.
You'd need some Gehwol Fusskraft and a good file!