Fresh Dendrobium is eaten as a decoction, paste or in pills or powder. Dendrobium is a traditional Chinese medicine, the stem of the orchid Dendrobium plant Dendrobium annuum, with the effects of benefiting the stomach and generating fluids (nourishing the stomach by replenishing the fluids in the stomach), nourishing yin and clearing away heat (nourishing yin essence and clearing away the heat evils), and is used to treat yin injuries, irritable thirst, poor appetite, and darkness of the eyes due to yin injuries. Dendrobium is used internally in decoction or paste or in pills and powder. Clinically, Dendrobium is used with smallpox pollen, fresh Radix et Rhizoma Ophiopogonis, Ophiopogonis, and Ophiopogonis to treat heat illnesses that injure the fluids and irritate thirst; Dendrobium is used with Radix et Rhizoma Ophiopogonis, Ophiopogonis, Scutellaria Baicalensis to treat swollen and painful gums and sores of the mouth caused by gastric heat and yin deficiency; and Dendrobium is used with Lycium barbarum, Rhizoma Dioecious, Cuscuta sinensis and others to treat the evidence of yin deficiency of the kidney and deficiency of yin of the kidney and darkness of the eyes. Adverse effects of Dendrobium is not clear at present. It is contraindicated to be used in combination with coagulant stone, croton, stiletto and so on. Care should be taken when using it, and it is contraindicated when there is deficiency but no fire. If you need to use the drug, you should be guided by a traditional Chinese medicine practitioner under the guidance of the identification of the drug, do not buy your own medicine to use, so as to avoid delaying the condition of the drug is not the right evidence.