Onychomycosis is a fungal infection of the nails. It is the most
common disease of the nails and constitutes about half of all nail
abnormalities.
The most common symptom of a fungal nail infection is the nail
becoming thickened and discoloured. There is usually no pain or other bodily
symptoms unless the disease is severe. People with onychomycosis may experience
significant psychosocial problems due to the appearance of the nail,
particularly when fingers – which are always visible , rather than toenails are
affected.
Systemic treatment is always required in proximal subungual
onychomycosis and in distal lateral subungual onychomycosis involving the
lunula region. A combination of systemic and topical treatment increases the
cure rate. Because the rate of recurrence remains high, even with newer agents,
the decision to treat should be made with a clear understanding of the cost and
risks involved, as well as the risk of recurrence.
Topical
antifungals
The use of topical agents should be limited to cases involving
less than half of the distal nail plate or for patients unable to tolerate
systemic treatment. Agents available in the United States include ciclopirox
olamine 8% and efinaconazole 10% nail solutions.
Oral
therapy
The newer generation of oral antifungal agents has replaced older
therapies in the treatment of onychomycosis. They offer shorter treatment
regimens, higher cure rates, and fewer adverse effects.
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