To observe the effects of dexamethasone to the phenotype of Trichophyton rubrum such as the growth, tippled pigment on the colony and the antifungal susceptibility to terbinafine.

• 观察地塞米松对红色毛癣菌生长、菌落产色及抗真菌药物敏感性的影响，为临床及时准确的诊断和合理的用药提供理论依据。