Baking soda, or sodium bicarbonate is an odorless crystalline white solid has many beneficial properties such as anti-inflammatory, anti-fungal, antiseptic, and antibacterial. It is naturally in a fine powder form. It is found in its natural state, dissolved in mineral springs around the world, making it easily available and cost effective.
Baking soda has been widely used since ages as a natural, chemical-free, anti-bacterial agent to tackle a myriad range of skin problems. It works as an effective exfoliate removing dry, dead skin that can cause acne, black heads and other skin problems. Here is a list of benefits of baking soda on skin.
Baking soda helps prevent acne and lighten acne scars as its antimicrobial and antibacterial properties cures underlying fungal infections. Due to its alkaline nature, baking soda helps correct the pH imbalances of the skin, which is one of the reasons behind the formation of acne. 
Baking soda falls under the category of physical exfoliates and its fine granule structure removes dead skin cells without causing excessive irritation.
Baking soda anti bacterial and anti fungal properties treat infections that cause blackheads and loosen skin around them to enable easy extraction.
Baking soda is alkaline, which helps soften the sebum and debris on the face. It also clears and opens up pores and absorbs excess oil preventing clogging of pores.
Other Skin Conditions
A paste made of baking soda in water, when dabbed on insect bites, allergic rashes, and skin exposed to poison oak/ivy reduces discomfort.
Ways To Use Baking Soda For Skin Problems
Basic Baking Soda Mask
Combine 1 and 1/2 tbsp baking soda with 1 tbsp water into a paste and gently rub into the skin. Keep on for 5-10 mins, rinse with lukewarm water, pat dry and apply a moisturizer.
Baking Soda Oatmeal Mask
Combine 2 tsp. of oatmeal with 1 tsp. of baking soda, stir until mixed. Add water drop by drop, until it forms a paste. Apply to face gently rubbing in a circular motion. Rinse well with lukewarm water after 5-10 mins, pat dry and moisturize.
Alternatively, you can prepare a mixture of few drops of any essential oil, 1 tablespoon of water and an 1/8 of a teaspoon of baking soda. Apply the mixture to the skin with a cotton ball.