An azole compound represented by the formula (I): ##STR1## wherein Ar is a substituted phenyl group;R.sup.1 and R.sup.2 independently are a hydrogen atom or a lower alkyl group, or R.sup.1 and R.sup.2 may combine together to form a lower alkylene group;R.sup.3 is a group bonded through a carbon atom;R.sup.4 is a hydrogen atom or an acyl group;X is a nitrogen atom or a methine group; and nY and Z independently are a nitrogen atom or a methine group which may optionally be substituted with a lower alkyl group, or a salt thereof, which is useful for prevention and therapy of fungal infections of mammals as antifungal agent.