The efficacy of Fengdu is to nourish the stomach and promote the production of fluids, nourish yin and clear heat, and has the effect of treating fever and fluid injury, deficiency heat, irritable thirst, tongue and dry mouth and other conditions. Fengdu is the dried product processed from the young and tender stems of Dendrobium officinale, family Orchidaceae. The drug is sweet and flat in nature, with the efficacy of nourishing the stomach and generating fluids, nourishing yin and clearing heat, and can be clinically used in the treatment of fever with fluid injury, unresolved deficiency heat, irritable thirst, and dryness of tongue and mouth. The adverse reactions of this drug are not clear, but when using it, it should be noted that during the period of taking the drug, it is recommended to eat a light diet to avoid aggravating the burden on the spleen and stomach. If you need to use maple dipper, it is recommended to go to a regular hospital, under the guidance of a professional physician to identify the symptoms of the treatment, do not self-medication, so as not to delay the condition.