Maitong has the effects of nourishing yin and moistening the lungs (nourishing the lungs by replenishing the lung fluid), benefiting the stomach and generating fluid (nourishing the stomach by replenishing the fluid in the stomach), and clearing the heart and removing vexation (clearing the vexation and heat in the heart), and is used in treating the symptoms of yin deficiency in the heart, lungs and stomach. Radix Codonopsis Pilosulae has the effect of tonifying spleen and lung qi, replenishing blood, generating fluid, supporting the upright and repelling the evil spirits, treating deficiency of spleen and lung qi, deficiency of qi and blood, deficiency of qi and fluid, and deficiency of qi and external sensation. 1. Ophiopogon is sweet, slightly bitter and slightly cold in nature, and belongs to stomach, lung and heart meridians. It has the effects of nourishing yin and moistening the lungs, benefiting the stomach and generating fluids, and clearing the heart and removing vexation. This drug is used in the treatment of dry lung cough, cough with deficiency of yin, paralysis of the throat (pharynx is red, swollen and painful, or dry, with foreign body sensation, or itchy and uncomfortable pharynx, difficulty in swallowing), sore throat, thirst due to injury of fluids, thirst due to internal heat (fever accompanied by symptoms such as overeating and excessive drinking and urination), heartburn and insomnia, constipation due to dryness of the bowels, and other conditions. The adverse effects of this drug are not clear, but it is not suitable for patients with deficiency of spleen and stomach (weak and cold spleen and stomach). 2. Codonopsis pilosula is sweet and flat in nature, and belongs to the spleen and lung meridians. It has the effects of strengthening the spleen and lungs (strengthening the functions of the spleen and lungs), nourishing blood and promoting the production of body fluid, and can be used for conditions such as deficiency of spleen and lungs qi, poor appetite and tiredness, cough and asthma, deficiency of qi and blood, yellowish color (yellowish color without luster), palpitation and shortness of breath, thirst due to injury of fluid, and thirst due to internal heat (fever accompanied by symptoms such as excessive food, drink and urination). The adverse effects of the drug are not known, but it is not advisable to use it together with Veratrum. If necessary, it is recommended to visit a regular hospital for treatment under the guidance of a professional physician for evidence-based treatment.