We all have gotten a callus at one time so the next time they appear having an effective callus remover should be on hand.
First off don't pick at the callus with your fingers or tools.
Moisturize the callus with organic lotions if possible and then cover the area so it is not exposed to the air with a bandage, sock, glove or wherever the callus is located.
When you are ready to treat the callus here are few things to do.
Make sure the area is clean before your begin.
Next, you may apply baking soda with water and soak the callus.
You can soak as long as you want be the recommended time is between 20-30 minutes.
Dry the area you are done soaking and make sure the callus isn't damp but dry.
You can apply cornstarch to make sure the area stays dry but this isn't a must.
Soak a rag or cloth in vinegar and place it on the callus overnight.
Start this process again the next day until you are satisfied and the callus is improving.
I tried this type of treatment and it really does help heal the callus, it might seem like a lot of work but isn't.
So calluses don't keep returning wear thick socks, wear quality shoes especially when exercising, wear gloves and kneepads when working with tools and gardening, and use lotions and vaselines often to keep hands moist.
I use to get calluses on my hands from raking leaves so I started to wear gloves which help greatly.
If you treat a callus with a callus remover you should see it heal very quickly.