Sample size:
Due to the sparsity of similar studies, a pilot study was conducted in
the department on 20 patients. Based on the results of recurrence
percentage among patients receiving Itraconazole (10%) and
Methylprednisolone (30%) observed in the pilot study and with 80%
power and 95% confidence, the minimum sample size required was 62.
Sixty patients were recruited (30 in each arm).