Dendrobium ferruginum is sweet, cold and belongs to the stomach and kidney meridian, it is good at nourishing yin and clearing heat, benefiting stomach and generating fluid, and brightening eyes, and can treat thirst due to injury of fluid and internal heat. It is cold in the stomach meridian, good at nourishing stomach yin, generating fluid and quenching thirst, and can treat low heat and thirst, dry mouth and throat caused by heat illness and injured fluid, and can be used with raw earth, maitong and rhizome. Dendrobium can nourish liver and kidney and strengthen tendons and bones, it can treat deficiency of liver and kidney, atrophy of tendons and bones, weakness of back and legs, and it can be used with Shu Di, Du Zhong, Sequoia, Sang Sang Sang, Wu Jia Pi, etc. If postpartum liver and kidney deficiency and yin deficiency lead to lumbar and leg pain, Dendrobium can be used with Radix et Rhizoma Bullwort, Radix et Rhizoma Rawhide and Fructus Lycii. This product can also treat blood vomiting and coughing and asthma, and can clear heat, nourish yin and generate fluid to treat both lung and spleen injuries, and can be used with Sha Shen, Yu Zhu and Mai Dong.