This invention provides a nail and /or skin patch which has anti-trichophyton activity and further exhibits high nail permeability. The adhesive layer of this nail and /or skin patch for prophylaxis or treatment of trichophyton diseases comprises a compound represented by the general formula (I): (wherein R1 represents a hydrogen atom, C1-6 alkyl, or trifluromethyl, R2 represents a hydrogen atom, C1-6 alkyl, a halogen atom, -COO (C1-6 alkyl), or (CH2)1-3COOR (R represents a hydrogen atom or C1-6 alkyl), R3 represents a hydrogen atom, C1-6 alkyl, amino, triflufluromethyl, or OR (R represents a hydrogen atom or C1-6 alkyl), R4 represents hydroxy, R5 represents a hydrogen atom, C1-6 alkyl, hydroxy, or a halogen atom, R6 represents a hydrogen atom, C1-6 alkyl, trifluromethyl, a halogen atom, amino, -NRaRb, nitro, hydroxyC1-6 alkyl, -CONRaRb, -COO(C1-6 alkyl), -COOH, -(CH2)1-3COOR, or ORa (R represents a hydrogen atom or C1-6 alkyl； and Ra and Rb are the same or different, which represent a hydrogen atom, C1-6 alkyl, or C1-6 acyl), R7 represents a hydrogen atom, C1-6 alkyl, -OR (R represents a hydrogen atom or C1-6 alkyl), or a halogen atom, R8 represents a hydrogen atom, C1-6 alkyl, hydroxy, amino, or nitro)； or salts thereof.本發明係提供具有抗白癬菌活性、且有高指甲透過性的指甲及/或皮膚用貼附劑。該白癬菌症之預防或治療用指甲及/或皮膚用貼附劑，係在黏著劑層中，含有通式(I)所示之化合物或其鹽。(式中，R1表示氫原子、C1-6烷基、或三氟甲基；R2表示氫原子、C1-6烷基、鹵素、-COO(C1-6烷基)、或(CH2)1-3COOR(R表示氫原子或C1-6烷基)；R3表示氫原子、C1-6烷基、胺基、三氟甲基、或OR(R表示氫原子或C1-6烷基)；R4表示羥基；R5表示氫原子、C1-6烷基、羥基、或鹵素；R6表示氫原子、C1-6烷基、三氟甲基、鹵素、胺基、-NRaRb、硝基、羥基C1-6烷基、-CONRaRb、-COO(C1-6烷基)、-COOH、-(CH2)1-3COOR、或ORa(R表示氫原子或C1-6烷基，Ra與Rb可相同亦可不同，表示氫原子、C1-6烷基、或C1-6醯基)；R7表示氫原子、C1-6烷基、-OR(R表示氫原子或C1-6烷基)、或鹵素；R8表示氫原子、C1-6烷基、羥基、胺基、或硝基。)
