Rapid response of Trichophyton tonsurans-induced onychomycosis after treatment with terbinafine.

We describe an 8-year-old Hispanic female who presented with distal subungual onychomycosis and tinea capitis. Both foci of infection yielded Trichophyton tonsurans upon culture, and were clinically and mycologically cured with terbinafine 125 mg, once daily for 1 week [DOSAGE ERROR CORRECTED]. This aspect of treatment with terbinafine has not previously been reported.