How effective is baking soda in killing fungus, and what is the recommended method of application?

Baking soda (sodium bicarbonate) has mild antifungal properties and may help slow the growth of certain fungi, including those responsible for athlete's foot, ringworm, and yeast infections. It works by creating an alkaline environment that many fungi struggle to thrive in. To use it, mix baking soda with water to form a paste or solution, then apply it directly to the affected area, let it sit briefly, and rinse clean.

While baking soda can be a helpful home remedy, it isn't a guaranteed cure and may not address the underlying cause of your symptoms. Fungal infections can mimic other skin conditions, and misdiagnosis can delay proper treatment. Before relying on any home remedy, it's worth understanding exactly what you're dealing with. Take a free, instant, online symptom check to get personalized insights into your symptoms and clear guidance on your next steps.

Reviewed for medical accuracy: 07/14/2026