What is the recommended method for using baking soda to treat fungal infections?

Reviewed by Yoshinori Abe, MD

Internal Medicine

Baking soda (sodium bicarbonate) may help fight fungal infections by creating an alkaline environment where fungi struggle to survive. It can be applied to affected areas in various forms, such as pastes or gels, and is often used as a supportive home remedy for mild fungal skin issues like athlete's foot, ringworm, or yeast overgrowth.

However, not every itchy rash or skin change is fungal — bacterial infections, eczema, and allergic reactions can look nearly identical, and using the wrong treatment can delay healing. Before assuming baking soda is the right fix, take a free, instant, online symptom check to better understand what may be causing your symptoms and what steps to take next.

Reviewed for medical accuracy: 07/14/2026

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Explanation

Baking soda, also known as sodium bicarbonate, has been shown to have antifungal properties. It works by altering the environment where fungi live, making it harder for them to grow and survive.

How to Use Baking Soda for Fungal Infections

Forms: Baking soda can be used in various forms such as powders or gels. Gels are a promising method because they can be applied directly to the skin, staying in contact with the affected area longer.
Application: When using a gel, apply a small amount to the affected area. If using a powder, mix with water to create a paste before applying. Make sure to cover the area thoroughly.
Frequency: Apply the treatment regularly, as recommended, to help reduce the fungal infection. Consistency is key.

Baking soda is a simple and accessible option for managing fungal infections, but if you're experiencing persistent symptoms or want to better understand what might be causing your skin concerns, try our free symptom checker for personalized insights and guidance on next steps.

(References)

Letscher-Bru V, Obszynski CM, Samsoen M, Sabou M, Waller J, & Candolfi E. (2013). Antifungal activity of sodium bicarbonate against fungal .... Mycopathologia, 22991095.
Tomás M, Rolo J, Gaspar C, Palmeira-de-Oliveira A, Simões S, Katz DF, et al. (2021). Sodium bicarbonate gels: a new promising strategy for the .... European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences, 33122009.
Sousa FA, Paradella TC, Koga-Ito CY, & Jorge AO. (2009). Effect of sodium bicarbonate on Candida albicans .... Brazilian oral research, 20027444.

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