Years ago when i was about 13 i used my moms dr scholls corn removers and since then i have hard dark spots on my toes. No pain, just very dark circles I would like to remove. I don t even think I have a corn, it s not hard or anything, just dark and not attractive. I do have slight bunions which cause my 2nd toe to raise sometimes and gives a little friction, but I typically wear wide sneakers and have been working on stretching out the toe joints.