Diode laser for fungal nail infection

Understanding fungal nail infections

Fungal nail infection, also known as onychomycosis, is one of the most common nail conditions worldwide. It is caused by dermatophyte fungi that invade the nail bed, nail plate, or both. Over time, the infection can spread to multiple nails, cause thickening and discolouration, and in some cases lead to discomfort, embarrassment, or secondary bacterial infection. While topical and oral antifungal treatments exist, they are not always effective and may take months to show results.

What is diode laser therapy?

Diode laser therapy is a modern treatment that uses concentrated beams of light at specific wavelengths to target fungal organisms within the nail. The heat generated by the laser damages the fungal cell walls, killing or weakening them, while leaving the surrounding nail and skin largely unaffected. This method is increasingly sought after because it is minimally invasive, safe, and effective, especially for patients who cannot tolerate oral antifungal tablets.

How diode laser works

The diode laser penetrates through the nail plate and heats the nail bed where the fungus resides. The heat disrupts fungal metabolism and growth, eventually leading to the clearance of infection as the healthy nail grows out. Unlike topical creams, which often fail to reach deep fungal colonies, the laser energy works beneath the nail surface where the infection is most active.

Who benefits from diode laser treatment?

Diode laser treatment is suitable for most adults with fungal nail infection, particularly those who:

• Have not responded to topical or oral antifungal medication
• Prefer to avoid the side effects of oral tablets
• Want a safe, non-invasive treatment option
• Have multiple affected nails or long-standing infection
• Seek cosmetic improvement alongside medical clearance

Treatment procedure at Skinhorizon

A typical diode laser session takes 20–30 minutes, depending on the number of nails treated. The procedure is performed without anaesthesia as it causes only mild warmth or tingling. Most patients require 3–4 sessions spaced several weeks apart for optimal results. Nails gradually improve as healthy growth replaces the infected portion over several months.

Aftercare and recovery

After laser treatment, patients can return to daily activities immediately. Good foot hygiene, keeping nails trimmed, and avoiding damp footwear are recommended to reduce the risk of reinfection. Using antifungal sprays or powders in shoes may also help maintain results. Regular review appointments allow your dermatologist to monitor progress.

Effectiveness of diode laser

Clinical studies show diode laser therapy significantly reduces fungal growth, with many patients experiencing long-term improvement. Results may vary depending on severity of infection, nail growth rate, and adherence to aftercare. Combining laser with other antifungal strategies can further enhance success rates.

Why choose Skinhorizon?

At Skinhorizon, we provide diode laser treatment in a safe, CQC-regulated clinic environment. Our dermatology-led approach ensures accurate diagnosis, effective treatment planning, and long-term monitoring. We combine technology with clinical expertise to deliver results tailored to your needs and lifestyle.

Your first visit — what to expect

1. Consultation: Detailed nail examination and confirmation of fungal infection.
2. Discussion: Review of your history, treatment options, and expected outcomes.
3. First session: Diode laser treatment carried out in-clinic.
4. Aftercare: Guidance on nail hygiene and reducing recurrence.
5. Follow-up: Regular monitoring and repeat treatments if needed.

Reviewed by: Dr Mohammad Ghazavi, Consultant Dermatologist
Skinhorizon Clinic, 4 Clarendon Terrace, Maida Vale, London W9 1BZ
Last reviewed: 20 August 2025