callus/bunion/corn on toe(s) ?

Anyone have this before?

Just in the past few days 2 big calluses formed on top of my toes. Guessing from my climbing shoes, I've been doing much more climbing the past few weeks and upping my grades.

Big hard red painful bump on pinky toe, then smaller one on another toe.

Any tips? Don't want to go to the doctor if I can help it.

Moleskin