Abstract
The aim of this study is to investigate the herbal compound patents' combination rules of eczema. Eczema herbal compound patents (oral drugs) from the past 29 years were collected, and a database was created. Complex system entropy clustering was used to analyze the prescription rule for eczema herbal compound patents. In total, 1039 eczema herbal compound patents, including 398 Chinese herbs, were identified. Complex system entropy clustering acquired high-frequency herbs, herbal couples, and core associations. Eczema herbal compound patents are known for clearing dampness and heat, dispelling poison, evacuating wind, and invigorating and cooling blood. By using complex system entropy clustering, herbal correlation of eczema herbal compound patents can be effectively analyzed.