A podiatrist treats toenail fungus through a combination of approaches tailored to how severe the infection is: trimming and thinning the nail, prescribing topical or oral antifungal medications, and in some cases using laser therapy or surgically removing the nail. Most treatment plans start with the least invasive options and escalate if the fungus doesn’t respond, and nearly all of them require months of patience before you see real results.
What Happens at the First Visit
Your podiatrist will examine the affected nail and likely take a small clipping or scraping to send to a lab. This confirms that the problem is actually fungus and not another condition like psoriasis or nail trauma, which can look almost identical. The lab test identifies the specific type of fungus involved, which helps guide treatment choices. Results typically take a week or two.
During that same visit, most podiatrists will debride the nail. This means trimming the nail back and filing down its thickness using sterile instruments. The goal is to remove as much infected, discolored nail material as possible. Thinning the nail also helps any topical medication you apply afterward actually penetrate through to the infection underneath. Debridement is painless for most people and provides immediate cosmetic improvement, even though the fungus itself is still present. Many patients return every few months for repeat debridement throughout the course of treatment.
Prescription Topical Medications
For mild to moderate infections, especially those affecting less than half the nail, a podiatrist will often start with a prescription topical antifungal. The two FDA-approved options are efinaconazole and tavaborole, both applied directly to the nail once daily. These are different from the over-the-counter products you find at the pharmacy. They’re formulated to penetrate the hard nail plate, which is the main barrier that makes toenail fungus so difficult to treat.
The commitment is significant: daily application for 48 weeks, with results evaluated at 52 weeks. And the cure rates are modest. In clinical trials, tavaborole achieved a complete cure (totally clear nail with no detectable fungus) in about 6.5 to 9 percent of patients. Efinaconazole performed somewhat better, with complete cure rates of 15 to 18 percent. Those numbers sound low, but they use the strictest possible definition of success. When you expand the criteria to include nails that are mostly clear (10 percent or less affected) with no active fungal growth, the numbers roughly double. About a third of patients on efinaconazole had a clear or nearly clear nail at the end of treatment.
Topical treatments work best when the infection is caught early and the nail isn’t too thick. They also carry almost no risk of systemic side effects, which makes them a good first option for people who can’t take oral medications due to liver concerns or drug interactions.
Oral Antifungal Medication
For moderate to severe infections, or when topicals haven’t worked, a podiatrist will typically prescribe an oral antifungal. Oral medications attack the fungus from inside the body through the bloodstream, reaching areas that topicals can’t. Treatment usually lasts 12 to 16 weeks of continuous daily pills, which is dramatically shorter than the 48-week topical regimen.
Oral antifungals have significantly higher cure rates. Mycologic cure (meaning the fungus is eliminated from the nail, even if some cosmetic damage remains) is substantially more common with oral therapy than with topicals alone. The nail itself takes 9 to 12 months to grow out completely, so even after you finish the pills, you’ll be waiting for a healthy nail to replace the damaged one. Relapse rates vary: one large comparative study found that about 9 percent of patients on terbinafine relapsed within 18 months of finishing treatment, compared to 22 percent on itraconazole.
Before prescribing oral antifungals, your podiatrist or the prescribing physician will order blood work to check your liver function. These medications are processed by the liver, and periodic monitoring during treatment is standard. Most people tolerate the pills well, but this is why they aren’t the automatic first choice for everyone.
Laser Treatment
Many podiatry offices now offer laser therapy for toenail fungus. The most common type uses a 1064-nanometer wavelength laser that penetrates deep into the nail bed. The idea is that the laser’s energy heats and destroys fungal cells without damaging the surrounding tissue. Sessions are quick, usually 15 to 30 minutes, and most patients describe feeling a warm or mild pinprick sensation during the procedure.
The evidence on laser treatment is mixed. Some small studies have reported cure rates around 50 percent after multiple sessions spaced one to several weeks apart. One small study found mycologic cure in seven out of eight patients. But the FDA has only cleared these devices for “temporary increase of clear nail,” not for curing the fungal infection itself. Major insurers classify laser treatment as investigational, meaning it’s almost always an out-of-pocket expense. Costs typically range from several hundred to over a thousand dollars for a full course of sessions.
Laser treatment is most often used as an add-on to topical or oral therapy rather than a standalone cure. If your podiatrist recommends it, ask about the specific outcomes they’ve seen in their practice and what the total cost will be before committing.
Nail Removal for Severe Cases
When the infection is severe, painful, or has completely destroyed the nail, a podiatrist may recommend partial or total nail removal. This sounds dramatic, but it’s a common in-office procedure done under local anesthesia. You won’t feel pain during the procedure itself.
The podiatrist numbs the toe with a nerve block, then uses specialized instruments to split and lift the affected portion of the nail away from the nail bed. Once the infected nail is removed, antifungal or antiseptic medication is applied directly to the exposed nail bed, where it can work far more effectively than it ever could through a thick, damaged nail. The nail will regrow over the following months, and topical or oral antifungals are usually continued during that time to prevent reinfection.
In cases where the fungus keeps returning despite repeated treatment, a podiatrist may perform a permanent procedure called a matrixectomy. After removing the nail, a chemical (typically phenol) is applied to the nail matrix, which is the tissue that generates new nail growth. This destroys the matrix so the nail doesn’t grow back at all. Recovery involves keeping the toe dry initially, a follow-up visit at three days for a wound check, and daily cleaning with salt water and antiseptic ointment until the site heals, which generally takes two to three weeks.
What Affects Your Treatment Plan
The approach your podiatrist recommends depends on several factors. The percentage of nail involved matters: a small patch of discoloration near the tip is treated very differently from an infection that has spread to the base of the nail. Nail thickness plays a role because extremely thickened nails block topical medications from reaching the fungus. Your overall health matters too. Diabetes and circulation problems slow healing and increase infection risk, which can push your podiatrist toward more aggressive treatment earlier.
Combination therapy, using two or more approaches together, is increasingly common. A typical plan might involve debridement to thin the nail, a prescription topical applied daily for months, and an oral antifungal to attack the infection systemically. This layered approach generally produces better results than any single treatment alone.
Regardless of which path you and your podiatrist choose, toenail fungus treatment is a long game. Toenails grow slowly, roughly 1 to 2 millimeters per month, so a full replacement cycle for a big toenail can take 12 to 18 months. Even after the fungus is successfully eliminated, the nail needs time to grow out and look normal again. Sticking with the treatment plan for its full duration, even when progress feels invisible, is the single biggest factor in whether it works.