It is composed of smallpox powder, raw dihuang, dried dihuang, Pueraria lobata, maitake, schizandra, and licorice. Its efficacy is to nourish yin and promote the production of fluids, moisten dryness and clear heat, and is used as a main treatment for thirst-quenching diseases. Tian Hua San, from Ren Zhai Zhi Zhi Zhi, Volume 17. In this formula, smallpox pollen clears heat in the lungs and stomach, generates fluid and quenches thirst (promoting fluid production to relieve thirst); Radix Rehmanniae Praeparata clears heat, nourishes yin and generates fluid; Radix et Rhizoma Dioscoreae nourishes yin and nourishes blood (nourishing blood in the body); Puerariae Root generates fluid and quenches thirst; Maitake Mentha benefits the stomach and generates fluid (nourishing the stomach by replenishing fluid inside the stomach), and purifies heat; Schisandra chinensis benefits the qi, generates fluid and quenches thirst; and Glycyrrhiza glabra harmonizes the various herbs (harmonizing the properties of different Chinese medicines). The combination of the above herbs is effective in clearing heat, nourishing Yin and promoting the production of body fluid. The adverse effects and contraindications of this formula are not clear, and it should be used under the diagnosis and treatment of a professional Chinese medicine practitioner, and should not be taken on one’s own to avoid risks.