7 Surprising Ways Baking Soda Boosts Your Hair, Skin, and Body Health

3. Treats Canker Sores

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Small yet fierce, canker sores are round ulcers inside the mouth. Though they heal naturally, the sting is intense. Rinse daily with the mouthwash from section 2—one or two teaspoons of soda in half a glass of water—to dull pain and speed recovery, as studies confirm.