What to expect from topical antifungal treatment for nail fungus

Nail fungus can make a nail look discoloured, thickened, brittle, or separated from the nail bed. A topical medicine acts at the nail and surrounding area, but the damaged part does not change back instantly. Progress is judged by clearer nail growing forward from the base, not only by the old discolouration disappearing.

The treatment selected depends on which nail is involved, how much of it is affected, and whether the infection reaches nearby skin. Other nail problems can resemble fungus, so confirmation may be needed before a long course.

Apply the medicine to a clean, dry nail exactly as directed. Follow any instructions about filing, trimming, or cleaning the nail, and do not share clippers or footwear. Keep feet dry, change damp socks, and allow shoes to air. Avoid covering the treated nail with cosmetic polish unless your clinician says it is compatible.

Expect regular care over the time advised by your clinician. Keep a simple record of the nail’s colour, thickness, tenderness, and new growth so a review can distinguish progress from a flare.

Contact a clinician if the skin becomes very sore, blistered, swollen, or increasingly red, or if drainage develops. Arrange review if the nail worsens, several nails become involved, or there is no clear healthy growth after the planned review point. People with diabetes, poor circulation, reduced sensation, or reduced immunity should seek individual advice early.

Ask how the diagnosis was confirmed, which parts of the nail need treatment, whether filing is advised, how long the course should last, and when another treatment would be considered.