A relative of the tomato and member of the nightshade (Solanaceae) family tomatillos provide that tart flavor in a host of Mexican green sauces. In Mexico the fruit is called tomates verdes, tomates de cascara as well as fresadillas. The fruits average about 1 -2 wide and have a papery outer skin.
Mix vinegar, warm water and baking soda well to make a solution of foot soak. Then soak your feet in this mixture for 30 minutes and keep rubbing your feet gently using your fingertips. Then put off feet and rinse well with tap water. Apply any of good hand and body lotion to keep your feet moisturized.
Vinegar will not hurt your feet, but you should still dilute it for the purposes of a foot soak. Generally, using one part vinegar to two parts water is a good ratio. While the soak will smell strong, the odor will dissipate after it dries from your feet. You can also use essential oils to change the scent slightly.