The course introduces the academic thoughts of the famous Classics the treatises on epidemic and febrile diseases, and the treatment of distension and fullness in chest and epigastrium caused by damp-heat pathogen. The main contents include as follows: -The different pathogenesis, diagnostic points and treatment of distension and fullness in chest and epigastrium in damp-heat diseases; -Analysing the different indications of the method of opening and draining and the method of bitter catharsis by tongue coating; -Elucidating the clinical application points of the method of opening and draining and the method of bitter catharsis through medical records.