Dendrobium is effective in generating body fluid and stomach, nourishing Yin and clearing heat. It is mainly used for the treatment of yin deficiency and heat. It does not have the efficacy of dispersing knots and cannot be used to treat swollen knots. Dendrobium is the fresh dried stem of the cultivated Dendrobium album and its similar species of the same genus of plants in the orchid family. It is sweet, slightly cold in nature, belonging to the stomach and kidney meridian, with the efficacy of promoting the stomach, nourishing the yin and clearing the heat, clinically it can be used for the treatment of fever, dry mouth, yin deficiency, stomach pain, and post-disease deficiency heat and so on. Dendrobium is mainly used for the treatment of stomach yin deficiency and kidney yin deficiency, and can not be used for the treatment of swollen knots. The contraindications and adverse reactions of Dendrobium are not clear. Pay attention to avoid eating spicy and greasy products during the period of taking the medicine. If discomfort occurs, it is recommended to go to the hospital in time and use the medicine under the guidance of a professional physician.