Baking soda makes an excellent remedy for itchy skin. It can also be used to treat heartburn and acid indigestion. See 10 Home Remedies for Itching and 14 Home Remedies for Heartburn to learn more. Discovery Health "Home Remedies Image Gallery"
Beauty - Squeeze a lemon and add a tablespoon of baking soda. But of course it depends on the size of your lemon, so just make sure you make a thick creamy paste. (If it's too watery add more baking soda)