Phlegm-heat cough with tongue coating is mainly characterized by yellowish greasy moss. Phlegm-heat cough is mainly manifested as cough, shortness of breath, or phlegm sound in the throat, phlegm more viscous, yellow color, or even coughing up blood phlegm, accompanied by face red, body heat, chest and ribs (chest and rib area collectively) distension, dry and sticky mouth, wanting to drink water, the tongue texture is red, the moss is yellow and greasy, the pulse is slippery, and so on. Treatment of phlegm-heat cough should be based on the principle of clearing heat and purging the lungs, removing phlegm and relieving cough, and can be treated with Qing Jin Hua Phlegm Tang, which is composed of Gua Puzu Ren, Scutellaria baicalensis, Gardenia jasminoides, Zhi Materia, Sang Bai Pei, Bei Mou, Maimendong, Tangerine red, Poria, Platycodon grandiflorus, and Glycyrrhiza glabra, and has the efficacy of clearing heat and resolving phlegm to relieve cough. The adverse effects of this formula have not been clarified, and it is contraindicated in allergic patients. If you have symptoms, please take the medicine under the guidance of a professional physician, do not take the medicine blindly by yourself to avoid delaying the condition or producing adverse reactions.