Photographic documentation and assessment of the treated toenails will be done at the interval visits as listed in the subject follow-up table below. The extent of mycological involvement will be determined by measuring the mm of clear nail from the cuticle line to the demarcation of clinically involved nail. This data will be recorded in the case report form. Nails are scored (grooved) at the initial visit to indicate the most proximal level of involvement. The distance from the proximal cuticle to the scored mark will be measured at each visit on any involved hallux nail.