Please recommend a gentle product that is good for calluses on the feet.

I tend to have severe calluses on my feet, so my heels get rough and flaky even in the summer, not just in winter.

However, I really disliked the feeling of the scraping exfoliants sold in stores. It felt like my skin was being rubbed... It wasn't extremely painful, but it felt like it hurt for no reason.

So, are there any products that aren't irritating?

It would be nice if there were a product that you melt and use, like a facial exfoliator.

I am applying foot lotion, but my feet only feel soft for a brief moment, and as soon as that goes by, they immediately become rough again. What could be the problem?