Chief Physician, Professor, and Doctoral Supervisor. Specializes in the diagnosis and treatment of common and rare dermatoses like condyloma, herpes, eczema dermatitis, urticaria, and psoriasis. Born in 1962, Dr. Zheng is a Chief Physician, Professor, and Doctoral Supervisor at the Department of Dermatology, Peking Union Medical College Hospital. After graduating from Peking Union Medical College in 1988, he has been working at the hospital's Department of Dermatology. He also conducted postdoctoral research at the University of North Carolina School of Medicine in the United States for four years. Promoted to Chief Physician and Professor in 2000, he has over 30 years of clinical and research experience, possessing rich clinical expertise in the diagnosis and treatment of common and various difficult dermatological and venereal diseases.