LIU Ming treats ecthyma from the aspects of damp heat, blood stasis and qi deficiency. The disease was summarized as dampness-heat pouring down type and qi deficiency and blood stasis type. Simiao Yong’an Decoction or Bamiao Tongmai Decoction could be used to reduce heat and detoxification, promote blood circulation and remove blood stasis. Danshen Tongmai Decoction or Buyang Huanwu Decoction could tonify qi and promote blood circulation, dispel stasis to promote regeneration. At the same time, the external treatment of Chinese medicine was applied with the "four-side theory" as the guide, by observing the different skin colors, skin temperature, swelling, presence or absence of tenderness and pain between the ulcerative skin and the healthy skin to judge yin and yang, deficiency and excess of ecthyma. Dampness-heat pouring down type, blood stasis type and qi and blood deficiencytypeweredifferentiatedandtreatedby GongyingJieduLotion, FufangHuangboLiquid, Quanxie Cream and Zhenzhu Shengji Powder, etc.