You have tried the creams. You have filed the nail down. Months later, the discolouration is still there. If over-the-counter options have not worked for your toenail fungus, you may be wondering whether laser treatment is worth considering. It is one of the options a chiropodist may discuss after assessing your nails. Learn more about fungal nail care in Cambridge.
Laser treatment for toenail fungus uses focused light energy to target the organisms living in and under the nail. In Ontario, a chiropodist can assess whether this option may be appropriate based on the type and severity of the infection. It is not a fit for every case, and results depend on individual factors including nail thickness, overall health, and how long the infection has been present.

Laser treatment for toenail fungus uses focused light energy to target the organisms living in and under the nail. In Ontario, a chiropodist can assess whether this option may be appropriate based on the type and severity of the infection. It is not a fit for every case, and results depend on individual factors including nail thickness, overall health, and how long the infection has been present.
Onychomycosis
Onychomycosis is the medical term for a fungal infection of the nail. It is most commonly caused by a group of fungi called dermatophytes, though yeasts and moulds can also be responsible. Onychomycosis can cause the nail to thicken, discolour, and separate from the nail bed. It accounts for roughly half of all nail conditions and tends to affect toenails more than fingernails.
Selective Photothermolysis
Selective photothermolysis is the process by which laser energy targets specific structures without damaging surrounding tissue. In the context of toenail fungus, the laser heats the fungal organisms within the nail while leaving healthy tissue largely unaffected. The effectiveness of this process depends on the wavelength of the laser, the duration of exposure, and the characteristics of the infection.
How laser therapy targets toenail fungus
Laser treatment for onychomycosis works by directing concentrated light energy through the nail plate and into the nail bed where fungal organisms live. The laser heats these organisms, which disrupts their ability to grow and reproduce.
What happens during a session
A typical session lasts between 15 and 30 minutes depending on how many nails require treatment. The chiropodist passes the laser device across the surface of each affected nail in a controlled pattern. Most people describe the sensation as a warming or mild prickling feeling. No anaesthetic is usually needed, and there is no downtime afterward.
How many sessions are typically involved
Multiple sessions are usually required, often spaced several weeks apart. The exact number depends on the severity of the infection and how the nail responds. Because toenails grow slowly, visible improvement may take several months. A new, clear nail must grow in to replace the damaged one, which can take up to a year for a big toenail.
How it compares to other options
Topical treatments such as medicated nail lacquers can have difficulty penetrating thick or heavily infected nails. Oral antifungal medications may be more effective for widespread infections, but they carry considerations related to liver function and potential interactions with other medications. A systematic review published in PMC found that laser therapy showed comparable results to oral antifungals with fewer reported side effects. A chiropodist can assess your situation and discuss which approach may be appropriate based on your health history and the specifics of your infection.
What This Means for Patients in Ontario
In Ontario, chiropodists are authorized to assess and treat fungal nail infections. This includes recommending treatment options based on clinical findings, not patient preference alone. Laser therapy for toenail fungus is available through some clinics, but it is not typically covered by OHIP. Some extended health insurance plans may cover part of the cost depending on the policy.
Before recommending any treatment, a chiropodist will assess the nail to confirm the presence of a fungal infection. Not all nail discolouration is caused by fungus. Trauma, psoriasis, and other conditions can mimic the appearance of onychomycosis. A proper assessment helps avoid unnecessary treatment and ensures the right approach is taken from the start.
It is also worth noting that no treatment for toenail fungus has a universal success rate. Results vary based on the type of fungus involved, how long the infection has been present, and individual health factors. A chiropodist can explain what is realistic for your specific case.
Laser Treatment for Toenail Fungus Cambridge
Toenail fungus can be a common concern among residents of Cambridge and the wider Waterloo Region, particularly among older adults and those who spend long hours in closed footwear. Seasonal factors such as warm, damp conditions inside winter boots can create an environment where fungal infections develop or worsen. Access to a local chiropodist means residents can have their nails assessed and discuss treatment options without needing a referral.
Frequently Asked Questions
Is laser treatment for toenail fungus painful?
Most people describe a mild warming sensation during the session. Discomfort is generally minimal and does not require anaesthetic.
How long before I see results from laser treatment?
Visible improvement depends on how quickly your toenail grows. It may take several months for a clearer nail to grow in after treatment begins.
Does laser treatment for toenail fungus work on its own?
It depends on the severity and type of infection. A chiropodist may recommend laser therapy alone or in combination with other approaches based on your assessment.
For a broader look at managing fungal nail infections, read our guide on how to get rid of toenail fungus.
If you notice signs of infection such as increased redness, swelling, or discharge around the nail, contact a healthcare provider.
Reviewed by Patricia Wilson, BScN, RN, DCh, a registered chiropodist in Ontario. This information is for educational purposes and does not replace an in-person assessment by a qualified foot care professional.
If you are dealing with discoloured, thickened, or brittle toenails, consider requesting an assessment at our clinic. A chiropodist can evaluate your nails and discuss whether laser treatment or another approach may be appropriate for your situation.

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