Toenail fungus is hard to treat because it burrows deep into the hard nail plate and nail bed, creating a protected environment where topical medications can't penetrate well, and the slow growth of nails means treatment takes many months to show results, with high recurrence rates because the fungus can persist even after symptoms disappear. The nail acts like a shield, hiding the fungus from your immune system and topical treatments, while oral drugs struggle to reach therapeutic levels in the nail tissue.
After a fungal infection has been treated, the nail may still appear thickened, discolored, or brittle. These changes occur because the infection can permanently damage the nail matrix—the area responsible for nail growth.
Your health care provider may prescribe an antifungal cream, such as efinaconazole (Jublia) and tavaborole (Kerydin). You rub this product into your infected nails after soaking. These creams may work better if you first thin the nails.
Can You Scrape Out Toenail Fungus? No. You may be able to scrape a bit off the top of or from under your nails, but that won't cure the infection.
For pregnancy-safe toenail fungus treatment, consult your doctor for options like topical antifungals (clotrimazole, miconazole), which are generally preferred, or laser therapy, a medication-free choice; avoid oral medications unless necessary, and consider home remedies like Epsom salt soaks or tea tree oil (diluted, with professional guidance) while waiting for professional care, as oral antifungals and some natural remedies carry risks.
If cellulitis is left untreated, the infection can spread to the bloodstream and become a life-threatening condition for many individuals. This is the most serious result of an untreated toenail fungus, which can be avoided with treatment from a medical professional.
Clotrimazole is generally considered safe to use during pregnancy.
In some cases, fungus can get into the cells that make the nail, called the “nail matrix.” That can make the fungus difficult to eliminate because the cells manufacturing the rest of the toenail are infected.
If you want to try this remedy, apply a bit of Vicks Vaporub to your affected toenails daily. It can still take several weeks to a couple of months for results to appear.
“Each evening, patients go to a bathroom or other place with a vinegar-resistant floor, don old cotton socks, pour a few spoons of plain or apple-cider vinegar and a few spoons of water over the toes, and sit and read for 10-15 minutes. They then doff the socks, apply topical antifungals, and go to bed.
Baking soda has strong antifungal effects. Soaking your thick yellow toenails in baking soda and water or vinegar and water can combat fungal infections. Vicks Vapo Rub will help dry the nail to combat fungus. Applying 100% tea tree oil to affected toenails twice daily can help ease symptoms.
Keratin granules are areas of damage to the top layers of the nail. They show up as small, chalky white spots or rough patches and happen when nail polish, especially if left on too long, dries out and weakens the surface of the nail.
Fungal spores can persist for up to 1–2 years in unopened nail polish bottles under ideal conditions. Once exposed to air, fungi may survive for several months, though growth rates can decrease due to oxygen exposure.
Even a mild infection like this can snowball into something more serious, like cellulitis, a severe bacterial skin infection. Another problem is that untreated fungus eventually can spread to either neighboring toenails or to the skin of your foot, causing athlete's foot.
Dry Thoroughly: After soaking, dry the nails completely to prevent any residual moisture, which can promote further fungal growth. Apply Directly (Optional): Some people choose to apply undiluted apple cider vinegar directly to the affected nails using a cotton ball, leaving it on for a few minutes before rinsing.
Your podiatrist can detect a fungal infection early, perform a lab test, determine the cause, and form a suitable treatment plan, which may include prescribing topical or oral medication, and debridement (removal of diseased nail matter and debris) of an infected nail.
An ill-advised barefoot romp around the pool deck or even a pedicure gone wrong may be all the fungi need to gain access to the space underneath a toenail. Once there, the fungi set about their task of “mining” your nail for nutrients—and leaving it discolored, thickened, misshapen, and more.
But because nails are not porous, it's difficult for the medication to reach the infection in concentrations great enough to kill the fungus.
A severe case of nail fungus can be painful and may cause permanent damage to your nails. And it may lead to other serious infections that spread beyond your feet if you have a suppressed immune system due to medication, diabetes or other conditions.
Treatments available
Simply filing down the thickness of the nail can help with these issues. It is easiest to file them when the nails are dry. You should use a separate disposable emery board on the infected nail(s) to avoid spreading the infection to healthy ones.
Key facts. It usually takes around 7 days of clotrimazole treatment for fungal infections to improve. Apply clotrimazole to the infected area 2 or 3 times a day for at least 2 weeks. Do not use clotrimazole cream, spray or solution for more than 4 weeks, unless a doctor tells you to.
No, you usually don't need to throw away shoes for athlete's foot; instead, you must treat the fungus in your shoes with antifungal sprays or powders and allow them to dry out completely to prevent reinfection, as the fungus thrives in damp, dark environments like shoes. Regularly rotating footwear, cleaning with antifungal solutions, and keeping feet dry and aired are key steps, though discarding severely infected shoes might be necessary in stubborn cases, according to Dapto Foot Clinic and My FootDr.
Terbinafine is the safest oral antifungal. Low-dose fluconazole (up to 150 mg) may be used in vaginal candidiasis, however, higher doses are not recommended. Itraconazole, ketoconazole, and griseofulvin may be best avoided due to lack of reliable human data.