Hi, I have a callus on the right big toe. I get a "throb" underneath the callus that drives me insane. I have to shave, rip, rub at the skin until I cause a significant amount of pain in the area and the "throb" goes away. It is not a regular occurrence but i probably do it twice a month minimum to maybe four times. I have drawn blood and have bought a pedicure knife to shave the skin off when it happens. I am guessing that the callus is pushing on a nerve? Not sure and wondering if there is relief that doesn't involve cutting my callus off?