Fungal Nail Infections

Fungal nail infections (onychomycosis) are one of the most common nail problems. They cause thickened, brittle, and discoloured nails, often starting in the toenails but sometimes affecting the fingernails. These infections can be persistent and difficult to treat with over-the-counter remedies. At DermLab, our Dermatologists provide accurate diagnosis and targeted treatments that work, including access to prescription medications and advanced options.

Why Diagnosis Matters

Not all thick or discoloured nails are caused by fungus. Psoriasis, trauma, or other nail disorders can look very similar. That’s why a Dermatologist diagnosis — often confirmed with a lab test — is essential before starting treatment.

Signs & Symptoms

  • Yellow, brown, or white discolouration of the nail

  • Thickened or brittle nails that split or crumble

  • Nail lifting away from the nailbed

  • Distorted nail shape

  • Sometimes associated with athlete’s foot or other fungal skin infections

Treatment at DermLab

  • Prescription antifungal tablets — the most effective treatment for clearing infections

  • Topical antifungal solutions — for mild or early infections

  • Nail debridement — trimming and thinning thick nails to reduce discomfort and improve treatment response

  • Preventive care — advice on foot hygiene, footwear, and preventing reinfection

Frequently Asked Questions

  • Fungal nail infections are deep within the nail and usually require oral medication or specialist treatments.

  • Yes, but they require blood tests in some patients. Dermatologists ensure treatment is safe and appropriate.

  • Yes. Reinfection is common if athlete’s foot or environmental sources aren’t also treated. Preventive care is important.

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