Youke san zhong (Three Books of Paediatrics) is a mid 20th century composite edition of three classics of paediatrics: Zengbu douzhen yusui jinjing lu (The Gold And Chalcedony Mirror of Pox Diseases, Expanded Edition) by Weng Zhongren (Ming period, 1368-1644), Youke tiejing (Iron Mirror of Paediatrics) by Xia Ding (Qing period, 1644-1911), and Xiao'er tuina guangyi (Overview of Paediatric tuina Massage) by Xiong Yingxiong (Qing period). A small number of illustrations are included in a supplement.
This illustration of 'Two Segments' pox, in traditional ink and brush style, comes from The Gold And Chalcedony Mirror of Pox Diseases.
The text states: 'Two Segments' (liang jie) refers to a pox (dou) rash which is clustered densely like a covering above the chest and below the navel, with no lesions at all in between. It is caused by a massive build-up of virulent poisons, when Qi and blood become separated and cannot be reunited. This is classed as one of the dangerous pox diseases. Treatment must focus on attacking the poisons. Pig's tail grease and earthworm are used to free the flow of Qi and blood. The medication should be thoroughly applied to the mid section to preserve it from disease(?).