I've been getting manicures and pedicures since before I was diagnosed with diabetes type 2 ten years ago this October. I develop thick calluses on the balls of my feet and my big toes. It is not easy for me to keep them from forming or to take them down substantially. My manicurist does it for me every other week which makes it far better for me.
I've heard all about diabetics not getting their feet soaked. But I do it. Soaking my feet while getting my manicure makes taking my calluses down far easier. I don't have the patience to do that frequently at home. At home, I just go for them with a vengeance, but it is not usually as effective as I'd like. I usually do use one of those "sanders" for skin. I bought mine at Costco about five years ago and replace the sanding inserts every so often.
My angel, Holly, is able to get my calluses off.I asked her to use tepid/warm water, not hot, for soaking my feet. She remembers so my feet don't protest hot water and I am far more comfortable. In addition to diabetes, I also have heart issues, hot water is not good for those.
I always bring my own polish, buffers and files. I know some people say we should bring our own tools like clippers, scissors, etc., but Holly is much better at sterilizing metal tools than I am. So, I don't bring those. I have, also, given her a box of plastic disposable gloves every so often to use for me.
My practice of going every other week works for me. I will continue.