Based on the data mining methods of association rules Apriori algorithm and complex system entropy clustering

108 cream prescriptions for treating bronchial asthma by professor WU Yin-gen were collected and analyzed for the frequency of herbs usage and the association rules between herbs. 10 core combinations such as 'Xanthii Fructus-Rubiae Radix-Magnoliae Flos-Angelicae Dahuricae Radix' and 10 new prescriptions such as 'Arnebiae-Wartwort-Gigeriae Galli Endothelium Corneum-Belamcandae Rhizoma-Ramuli Euonymi-Polygonati Rhizoma' were extracted. Part of the prescription rules of the cream formula for bronchial asthma by professor WU Yin-gen were obtained

such as conditioning 'cold constitution' via tonifying spleen and kidney in different ways

taking seriously the related symptoms of allergic rhinitis and eczema

treating phlegm after distinguishing cold and heat

treating Qi movement via regulating mechanism of pivot

paying attention to dredging meridians and promoting blood circulation on asthma related with women' s menses and delivery.