I have these spots that look like a calus I would get but they are between my knuckels. I have tried to scrub them and think of anything I am doing new to work that area but have found nothing. I do not like them.. why do I have them and how do I get rid of them? Thank You

I have these spots that look like a calus I would get but they are inbetween my knuckels. I have tried to scrub them and think of anything I am doing new to work that area but have found nothing. I do not like them.. why do I have them and how do I get rid of them? Thank You
I have the same dark spots between my knuckles,I don't know what caused them.I just started taking cellfood. I am taking this stuff that has a pine bark in it called pycnogenol,also androgel {testosterone} I don't know if any of this stuff or combination of this stuff caused it. If you take any of these too, I'd like to know. Or if you go to a doctor and find out anything, please tell me. Mine are calus like too. I just started putting oregano oil on them I think its helping,hydrocortisone did nothing. I'll be checking every day to see if you have written. Thank you,DEAN