Described is a triazole derivative represented by the formula (1): ##STR1## wherein R.sup.1 represents a lower alkyl group or an aralkyl group, R.sup.2 represents a hydrogen atom, a lower alkyl group, an aralkyl group or an acyl group, X.sup.1 and X.sup.2 are the same or different and each independently represents a hydrogen atom, a halogen atom or a trifluoromethyl group, n stands for an integer of 0 to 2 and m stands for an integer of 1 to 5, or salt thereof; and also a pharmaceutical comprising the derivative or salt thereof as an effective ingredient. The compound as described above has a high antimycotic activity and is useful for the prevention and treatment of mammalian mycotic infections.