Healthy Feet
Toenail fungus (onychomycosis) affects roughly 1 in 10 adults and up to half of people over 70. It makes nails thick, yellow or white, crumbly and sometimes smelly. It is stubborn because the fungus lives under and inside the nail, where creams struggle to reach. Here is an honest ranking of the home remedies people try.
Is it really fungus?
Thick, discolored nails can also come from injury (for example from tight shoes or sport), psoriasis, or simply aging. About half of abnormal-looking nails are not fungal at all. If you are unsure, a podiatrist or doctor can take a clipping to confirm it, which also tells you whether treatment is worth the effort.
Home remedies ranked by evidence
| Remedy | Evidence | Our take |
|---|---|---|
| Tea tree oil | A 1994 trial found 100% tea tree oil similar to 1% clotrimazole after 6 months; about 60% improved, few were fully cured. | Best-studied natural option. See our tea tree guide. |
| Thymol (thyme oil) / mentholated rub | Small study of 18 people using a thymol-menthol-camphor rub: most improved, about a quarter cured. | Promising, cheap, needs daily use. |
| Oregano and clove oils | Strong antifungal effects in lab tests; few human studies. | Reasonable in a blend with carrier oil. |
| Vinegar soaks | No good trials. | Harmless, unlikely to clear fungus alone. |
| Baking soda, hydrogen peroxide, Listerine | No good trials. | Skip, or use only as a foot hygiene step. |
| Garlic, bleach | None; can burn the skin. | Avoid. |
How to give any topical treatment the best chance
- Trim and thin the nail. Cut nails straight across and gently file the top surface once a week, so the product can soak in.
- Apply every day to the whole nail, under the tip and on the skin around it.
- Treat athlete's foot too, because fungus on the skin keeps reinfecting the nail.
- Keep feet dry. Change socks daily, rotate shoes, and use antifungal powder in shoes.
- Be patient. A big toenail takes 12 to 18 months to grow out completely. Take a photo monthly to see progress at the base of the nail.
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When home remedies are not enough
See a podiatrist or doctor if more than half the nail is affected, several nails are involved, the nail is painful or lifting, or if you have diabetes or poor circulation. Prescription tablets such as terbinafine have the highest cure rates (around 70% of nails test fungus-free), though they need a liver check for some people. Prescription lacquers and solutions such as ciclopirox or efinaconazole work for milder cases, and laser treatment is another option, usually not covered by insurance.
Sources
- Comparison of two topical preparations for the treatment of onychomycosis: Melaleuca alternifolia (tea tree) oil and clotrimazole – Journal of Family Practice, 1994 (PubMed)
- Novel treatment of onychomycosis using over-the-counter mentholated ointment: a clinical case series – Journal of the American Board of Family Medicine, 2011 (PubMed)
- Nail Fungus: FAQs – American Academy of Dermatology (aad.org)
Keep reading
Tea tree oil for toenail fungus
Yellow toenailsFrequently asked questions
What kills toenail fungus fastest?
Prescription terbinafine tablets are the most effective option, but even then a clear nail takes many months to grow out. No home remedy works fast, whatever the marketing says.
Does Vicks VapoRub work on toenail fungus?
A small study found that daily mentholated rub improved toenail fungus in most of the 18 people who tried it, with about a quarter cured. It is cheap and low-risk, but the evidence is limited.
Is toenail fungus contagious?
Yes, mildly. It spreads in damp places like pool decks and showers, and between family members sharing towels or nail clippers. Wear sandals in shared showers.
Can toenail fungus go away on its own?
Rarely. Without treatment it usually stays or slowly spreads to more of the nail or other nails.