The pathogen positive cases were treated with antipathogen (Group A), while the pathogen negative cases were received routine treatment (Group B).

• 合并有病原体感染的作抗病原体治疗(A组)；无合并感染的按痤疮常规治疗(B组)。结果检出糠秕孢子菌349例；占73.；8%25;