The efficacy of Huaganghong is to regulate qi and relax the middle (regulating the qi of the spleen and stomach), dry dampness and resolve phlegm (removing phlegm in the body by drying dampness), and it can be used to treat coughs and phlegm, food accumulation (indigestion of food and stagnation of food in the stomach), alcohol, vomiting, malaise, lumps and stuffiness, etc. Its contraindications are qi and yin deficiencies, and it is forbidden to those who suffer from coughs with little phlegm. Huaganghong is a kind of traditional Chinese medicine, which is the immature or nearly mature outer skin of Huazhou Pomelo of the Rutaceae family. Its flavor is pungent, bitter, warm, and belongs to the lung and spleen meridians, and its effect is to regulate qi and broaden the middle, dry dampness and dissolve phlegm, and it can be used for coughing with excessive phlegm, food accumulation and injury to alcohol, and vomiting, malignant plumping and stuffy conditions. Tangerine red is contraindicated for people with qi deficiency, yin deficiency and dry cough with little phlegm, and the adverse effects are not clear. If you need to use this kind of drug, it is recommended to use under the guidance of a doctor, avoid unauthorized use of medication, to prevent the adverse consequences.