Fungal Nail Infection

Overview

Fungal nail infections (onychomycosis) are one of the most common nail problems in the UK - yet they often develop quietly before becoming a persistent, embarrassing issue. They occur when fungi (usually dermatophytes) infect the nail bed, leading to thickened, brittle, or discoloured nails that can spread over time if left untreated.

While fungal nail infections rarely cause pain in the early stages, they can be stubborn and slow to clear without treatment. Over time, nails may become distorted, crumbly, or detach from the nail bed - affecting confidence, footwear comfort, and even daily activities.

The good news? Effective prescription-strength treatments are available. At SwiftMedi, our UK-registered prescribers can assess your symptoms through a secure online consultation and recommend proven antifungal solutions such as Amorolfine Nail Lacquer (Curanail) - clinically shown to clear infection and restore healthy nail growth when used consistently.

Symptoms

Common signs of a fungal nail infection include:

• White, yellow, or brown discolouration of the nail
• Thickened or brittle nails that may crumble at the edges
• Nails that become distorted or separate from the nail bed
• A dull or rough appearance instead of the usual shine
• Occasionally, mild discomfort or an unpleasant odour

In severe or long-standing cases, several nails may be affected on one or both feet.

Diagnosis

Fungal nail infections are often diagnosed based on appearance alone, but sometimes a doctor or prescriber may recommend a nail clipping test to confirm the type of fungus before treatment.
Early diagnosis makes treatment more effective - the sooner you start, the quicker healthy nail regrowth can begin.

Treatments

Clearing a fungal nail infection requires patience and consistency, as nails grow slowly and infection sits deep within the nail bed. At SwiftMedi, your prescriber may recommend:

• Amorolfine 5% Nail Lacquer (generic)
• Curanail 5% Nail Lacquer (brand)

Both contain amorolfine hydrochloride, an antifungal medicine that kills the fungus and prevents it from spreading. The lacquer is applied directly to the affected nails once or twice a week, forming a protective barrier that penetrates deeply over time.

Treatment may take 6 months for fingernails or up to 12 months for toenails, but visible improvement usually begins after a few weeks as new, healthy nail grows through.

Oral Antifungal Medication (in certain cases)

For more severe or widespread infections, your GP may consider oral antifungal tablets. However, most mild to moderate infections respond well to topical lacquers when used correctly.

Additional Care
Regular filing, trimming, and keeping feet dry and clean all help improve outcomes. Avoid sharing nail clippers, socks, or footwear during treatment.

Prevention

Even after successful treatment, fungal nail infections can return - especially if fungal spores linger on shoes or skin. To reduce the risk of recurrence:

• Keep feet clean and dry, especially between the toes.
• Change socks daily and avoid tight, non-breathable shoes.
• Use antifungal foot powder or spray if you’re prone to athlete’s foot.
• Avoid walking barefoot in communal areas like gyms or pools.

Disinfect nail tools and avoid nail salons with poor hygiene.

Misconceptions

“It’s just cosmetic.”
Not true - fungal nail infections can spread and worsen over time, eventually affecting nail structure and comfort.

“Cutting the nail short will make it go away.”
Trimming helps manage symptoms, but it won’t cure the infection. Antifungal treatment is still needed.

“If one nail is infected, the others are safe.”
Fungal spores can easily spread to nearby nails, especially in warm, moist conditions.

“It’s only caused by poor hygiene.”
While hygiene plays a role, factors like tight shoes, damp environments, diabetes, and athlete’s foot increase risk even with good hygiene.