1/8 cup oil
1 teaspoon vinegar
Petroleum jelly or white vegetable shortening
After soaking feet well, rub callused area of feet with rough toweling. Apply the mixture of oil and vinegar. Massage in well and blot the excess. You might also use a pumice stone on rough spots every day following your bath. Make sure skin is dry first before you abrade. Then rub in an emollient such as petroleum jelly or even white vegetable shortening.