Angelica Six-Huang Tang is used to treat night sweating (abnormal sweating after going to sleep and stopping after waking up) caused by yin deficiency and fire exuberance. It may be effective in treating insomnia caused by night sweating, but may not be effective in treating other types of insomnia, and should be taken according to the doctor’s instructions. Angelica Six Yellow Soup is a Chinese medicine formula composed of Angelica sinensis, Radix et Rhizoma Dioscoreae, Radix Rehmanniae Praeparatae and Radix Scutellariae. Its efficacy is to nourish yin and diarrhea fire, consolidate the surface to stop sweating (stop sweating by consolidating the muscle surface). It is used for night sweating caused by Yin deficiency and fire exuberance, with fever and night sweating (sweating at night while sleeping, waking up to stop sweating), red face and heartburn, dry mouth and lips, dry and knotty stools, yellow-colored urine, red tongue and yellow tongue coating. In this formula, Angelica sinensis, Radix Rehmanniae Praeparata and Radix Rehmanniae Glutinosa nourish Yin and nourish Blood by nourishing the Liver and Kidney. Huang Lian, Huang Baicalin and Huang Bai are used as ministerial herbs to remove fire and nourish Yin and clear heat. Astragalus is also used to strengthen Qi and stop sweating, while Angelica sinensis and Radix Rehmanniae can be combined to nourish Qi and Blood. The combination of all the drugs can nourish yin and diarrhea fire, solidify the surface to stop sweating. It can be seen that the main function of Radix Angelicae Sinensis and Radix et Rhizoma Polygoni Multiflori is to treat night sweating caused by yin deficiency and fire exuberance. This formula is strong in nourishing yin and cathartic fire, and is suitable for people with yin deficiency and fire exuberance without injury to the middle qi. It should not be used if the spleen and stomach are weak and there is little food and loose stools (thin and unformed stools). This formula should be used by a professional Chinese medicine practitioner after diagnosis, and should not be used blindly on one’s own in order to avoid causing adverse reactions.