Woodcut illustration from a Qing (1644-1911) edition of the Ming (1368-1644) text Waike baixiao quanshu (Compendium of Effective Therapies of External Medicine) by Gong Juzheng. It shows acu-moxa locations commonly used for the external application of ointments. It consists of two charts: one of the front of the body, and one of the back. The labelled locations are: jianjing (Shoulder Well); quchi (Pool at the Crook); feishu (Lung Conveyor); fengmen (Wind Portal); gaohuang (Vital Region); shenshu (Kidney Conveyor); mingmen (Portal of Life) ; pangguang[shu] (Bladder [Conveyor]); huagai (Magnificent Canopy); danzhong (Chest Centre); zhongwan (Middle Cavity); zhangmen (Completion Portal); guanyuan (Pass to the Origin); dantian (Cinnabar Field); zu san li (Leg Three Miles); sanyinjiao (Three Yin Intersection). When applying ointments externally, the use of appropriate acu-moxa locations is considered to improve the efficacy of the treatment.