Mai Dong and Chen Pi together in water has the effect of strengthening the spleen, moistening the lungs and clearing the heart, but the water may not be able to completely precipitate the active ingredients of the drug, so the efficacy is limited. Ophiopogon can nourish yin and promote the production of fluid, moisten the lung and clear the heart. It can be used for dry lung and cough, consumptive cough with deficiency of yin, paralysis of the throat (redness, swelling and pain in the pharynx, or dryness, foreign body sensation, or itchy and discomfort in the pharynx, difficulty in swallowing), sore throat, thirst due to injury of the body fluid, thirst due to internal heat (internal fever accompanied by symptoms such as overeating and excessive drinking, excessive urination, etc.), heartburn and insomnia, and constipation due to dryness of the intestines. Pericarpium Citri Reticulatae can regulate qi and strengthen the spleen (regulating qi and tonifying the spleen), drying dampness and resolving phlegm (removing phlegm from the body by drying dampness). It is used for distention and fullness in the epigastrium (abdomen), poor appetite and vomiting and diarrhea, and cough with excessive phlegm. Patients are advised to take the medicine under the guidance of a doctor to avoid delay.