Apple cider vinegar (ACV) is a popularly touted natural remedy for foot care. Proponents use it to help with foot odor, athlete’s foot symptoms, and dry, rough skin, largely thanks to its acetic acid content and reported antibacterial and antifungal properties.

To try an ACV foot soak, a commonly recommended ratio is 1 part vinegar to 2 parts warm water. Soak the feet for 10 to 15 (or up to 20) minutes, allowing the mixture to cleanse and refresh the skin and potentially help restore pH balance. Many people report the routine feels calming and rejuvenating.

That said, scientific support is limited. Lab studies (in vitro) show that acetic acid can inhibit some bacteria and fungi. But clinical evidence of ACV’s effectiveness for common foot conditions (like toenail fungus or severe athlete’s foot) is weak or lacking.  Medical sources emphasize that while ACV might help with mild symptoms or as a complementary measure, it should not replace prescribed antifungal treatments when needed.

It’s also wise to take precautions. ACV is acidic and can irritate or even burn sensitive or damaged skin. Using it on open wounds, cracked skin, or in patients with diabetes or poor circulation is risky. Many experts advise limiting soaks to once or twice weekly, diluting well, and stopping use if irritation occurs.

In summary, an ACV foot soak is a low‑cost, low‑risk home remedy that may offer some modest benefit for foot odor, mild fungal growth, or dry skin—especially when used sensibly. But it is not a guaranteed cure, and its role in foot care should be complementary, not a substitute for medical treatment when serious or persistent conditions arise.