What is Baking Soda Paste?

Baking soda paste is simply sodium bicarbonate mixed with enough water to form a thick, spreadable consistency. It has been a household go-to remedy for generations, used across cultures to calm irritated, itchy, or inflamed skin. Because sodium bicarbonate is inexpensive, widely available, and generally safe, it remains one of the most commonly used home skin treatments worldwide.

How does Baking Soda Paste work?

Sodium bicarbonate is a mild alkali, meaning it can help neutralize acidic irritants on the skin surface — such as the formic acid from insect stings or acidic sweat that worsens itching. It also has gentle antiseptic and anti-inflammatory properties that may reduce redness and swelling in minor skin reactions. The paste form keeps the compound in contact with the skin longer than a rinse, allowing more sustained relief.

What forms does Baking Soda Paste come in?

The DIY paste is the most common form — typically 3 parts baking soda to 1 part water, adjusted to a thick consistency. Commercial preparations exist as creams or gels that include sodium bicarbonate alongside moisturizing agents to reduce the drying effect of baking soda alone.

Where it comes from:

Sodium bicarbonate has been used medicinally for thousands of years — ancient Egyptians used natron (a naturally occurring sodium salt mixture) for cleaning and skin care. In modern households, baking soda paste became a widely shared remedy passed down through generations, particularly for bug bites, bee stings, and sunburn, long before clinical research caught up.

What does Baking Soda Paste help with?

• Insect bites and bee stings: The mild alkaline pH of baking soda paste helps neutralize the acidic compounds in insect venom and saliva, which are a primary driver of the burning and itching sensation. Applied directly to a bite or sting site, it can calm the immediate reaction and reduce urge to scratch within minutes.
• Sunburn relief: Cool baking soda paste applied to sunburned skin provides a soothing, anti-inflammatory effect that can take the edge off burning and redness. It is believed to help by gently buffering skin pH and providing a cooling sensation as the paste dries.
• Itchy skin and hives: For generalized itching from hives, dry skin, or mild allergic reactions, baking soda paste can temporarily calm itch signals at the skin surface. A baking soda bath (dissolved in warm water) is a longer-established version of this approach for covering larger skin areas.
• Poison ivy and poison oak rash: Baking soda paste is a traditional home remedy for the intensely itchy rash caused by urushiol contact from poison ivy or oak. It does not remove the urushiol itself but may help ease the itch and inflammation in the days following exposure.
• Minor skin irritation and redness: Whether from friction, sweat, or mild chemical exposure, baking soda paste can provide a calming, buffering effect on irritated skin. Its gentle antiseptic properties may also help prevent secondary issues in small areas of broken or chafed skin.
• Fungal skin infections (mild, surface-level): Baking soda creates an alkaline environment that many fungi find inhospitable, making it a supportive — though not standalone — measure for mild surface fungal issues like athlete's foot or heat rash. It works best as a complementary measure alongside proven antifungal treatments.
• Body odor (underarm use): Baking soda neutralizes the acidic byproducts of odor-causing bacteria on the skin, making it a popular natural deodorant ingredient. As a paste, it can be applied directly to the underarms, though it may cause irritation with daily use in sensitive individuals.
• Minor burns and skin inflammation: For very minor first-degree burns, a cool baking soda paste may reduce burning sensation and mild redness. It should only be used on superficial burns after the area has been cooled with water, and never on broken, blistered, or open skin.

What can Baking Soda Paste help prevent?

• Secondary infection in minor insect bites (by reducing scratching-related skin damage)

Which foods are rich in Baking Soda Paste?

Baking soda paste is a topical compound — it is not consumed as food and has no meaningful dietary source in this context. However, the inflammatory skin conditions it addresses are often worsened by pro-inflammatory diets. Supporting your skin from the inside out is best done by eating plenty of omega-3-rich foods (fatty fish, flaxseed, walnuts), colorful antioxidant vegetables, and staying well hydrated. Minimizing refined sugar and processed oils may reduce the frequency and severity of inflammatory skin flare-ups that baking soda paste is often used to treat.

What are the side effects of Baking Soda Paste?

• Skin dryness or tightness after use
• Mild stinging or tingling on broken or very sensitive skin
• Redness or irritation with repeated daily use, especially under the arms or on the face
• Rare allergic contact reaction (uncommon; baking soda is generally hypoallergenic)
• Disruption of skin acid mantle with prolonged use

Good to know:

Baking soda paste is very safe for most people when used short-term and on intact skin. Prolonged or overly frequent use — especially on the face or sensitive areas — can be drying and may disturb the skin's natural pH balance.

How much Baking Soda Paste should you take?

• Recommended daily: Mix 3 parts baking soda with 1 part clean water to form a thick paste. Apply a thin layer directly to the affected area.
• Best time of day: As needed; apply promptly after insect bites or skin irritation occurs for fastest relief.
• With or without food: Not applicable — topical use only.
• Time to effect: Itch or irritation relief typically within 15–30 minutes; leave on for up to 20 minutes then rinse.
• How long to take it: Use as needed for acute skin complaints. Avoid applying to the same area more than 1–2 times per day or for more than a few days in a row without a break, particularly on sensitive skin. For ongoing conditions, consult a dermatologist.