In the previous period, several consecutive fogs occurred in Beijing, with the highest pollution index reaching over 500, the weather was dirty and gloomy, giving people a dull feeling, resulting in a lot of coughs, treating more than a dozen cases of haze cough with good results, which are summarized as follows: I. Etiology The etiology of haze cough is due to haze, the onset of the season in winter foggy weather, the nature of the disease is cold + dampness or fog, with the characteristics of summer dampness or fog dew filth. The pathogenic analysis: 1. Location: in the lung 2. Nature: cold, dampness, turbidity 3. The basic method of treatment is to disperse cold, dispel dampness and remove turbidity. If the turbidity and heat in the lung, when dispersing the evil to drain the turbidity, clear the lung to resolve phlegm; if the cold turbidity in the lung, when dispersing the cold to warm the lung to drain the turbidity. Main manifestations: heavy cough, cough with little sputum, or sputum in small gray pieces, accompanied by suffocation or discomfort in the pharynx, heavy body sleepiness, usually without fever and vicious cold, light red tongue, thin white and slightly greasy coating, and sunken moist pulse. Treatment: Promote the lung to disperse cold, dispel dampness and eliminate turbidity. 2, turbidity-heat congestion of the lung Main manifestations: heavy cough, shortness of breath and tightness in the chest, cough with unpleasant sputum, not much sputum, yellowish sticky sputum, red tongue, thin yellow and slightly greasy coating, slippery pulse. Treatment: Promoting heat in the lung and clearing heat, lowering Qi and expelling turbidity. Explanation: Composed of Ephedra, Perilla, Almond, Orange Red, Mulberry White Peel, Poria, Licorice, Radix Platycodon, Scutellaria. In the formula ephedra to promote the lung and disperse cold, relieving sweating as the ruler, dispel the cold and damp haze in the table turbidity; almond, suzi lowering phlegm, promote the lung to stop cough as the minister, clear the phlegm in the phlegm; Chen Pi to regulate dampness, mulberry white peel diarrhea of the lung and water, red poria to permeate dampness and water, the three flavors to move the air and dispel water to eliminate phlegm as the adjuvant; roasted licorice to harmonize all the medicines as the make. Together to promote the lung to resolve phlegm, cough and asthma. The lung is responsible for the elevation and declination of the qi of the body, and this formula treats the pathogenic mechanism by promoting and lowering the lung qi. In this formula, the medicine acting on the lung meridian is combined in one side, so that the surface cold is relieved, the lung qi is promoted, the phlegm is dissolved, and the asthma and cough are calmed, hence the name “Huagai San”. Add Radix Platycodon grandiflorus to help Ephedra expel haze and turbidity. Add Scutellaria baicalensis to clear lung heat. 3.Cold drinks offending the lung Main manifestations: heavy cough, unfavorable throat, unpleasant cough and phlegm, or spitting of clear and thin phlegm, or dry cough without phlegm, slight cold, no fever, light red tongue, thin white fur, tight pulse. Treatment: Dispersing cold and warming the lung, dissolving drinks and draining turbidity. Xiao Qing Long Tang is mainly used for treating external wind-cold and internal stagnation of cold drinks. In this formula, ephedra and cinnamon branch are used as rulers to disperse cold by sweating to relieve superficial evil, and ephedra can promote lung qi to calm asthma and cough, and cinnamon branch can promote the flow of water to facilitate the transformation of internal drinks. Dried ginger, fine spice for the minister, warming the lung to drink, and help hemp, gui to remove the surface of the evil. If pure hemp and Gui spicy warm dispersal, dry ginger warmth, fear of depletion of lung gas, so adjuvant Wu Wei Zi astringent lung cough, peony and nourish the blood, two drugs with the spicy products, a scattering a collection, both to enhance the cough and asthma, but also to restrain the medicine spicy warm dry too much; half Xia dry dampness and phlegm, and stomach, also as an adjuvant. Roasted licorice is also an adjuvant, which can benefit the qi and the middle, and also harmonize the pungent, dispersing and acidic products. Gui Zhi with Paeonia lactiflora, harmonizes the Ying and Wei; Ephedra with Hsiang, disperses the cold of the exterior and interior. Although the medicine is eight flavors, the combination of strict, scattered in the collection, open in the combination, so that the wind and cold relief, turbid drinks to go, the Xuanjiang restored, the symptoms will be pacified.