There are not three kinds of people should not eat dendrobium, allergic to dendrobium, warm-heat disease early yin has not been injured, wet temperature (feeling dampness and heat caused by warm disease) disease has not been transformed into dry people, spleen and stomach cold (spleen and stomach weak cold) should not be eaten. Dendrobium can be used for impotence and weakness of tendons and bones, less food and dry vomiting. Dendrobium, sweet flavor, slightly cold nature. It belongs to stomach and kidney meridian. It has the efficacy of benefiting the stomach and generating fluids (nourishing the stomach by replenishing the fluids in the stomach), nourishing yin and clearing heat (nourishing the yin essence and clearing heat). It is used for heat disease, dry mouth and thirst, deficiency of gastric yin (insufficient yin fluid in the stomach), dry vomiting with little food, non-removal of deficiency heat after illness, exuberant yin deficiency and fire (deficiency of yin essence in the body, resulting in hyperactive deficiency fire), bone vapor and laborious heat, darkness of the eyes, and impotence of the muscles and bones. Adverse effects of Dendrobium are not clear, please do not self-medicate, if you are not feeling well, please go to the hospital.