Since the beginning of winter, the haze has been frequent in most of the central and eastern regions of China, and its duration is generally more than 5 days, causing serious air pollution and reduced visibility, affecting people’s normal life and becoming one of the current hot spots of social concern. Haze can also be seen in the history books, such as the “History of Yuan” recorded in the Yuan Tianli two years (1329) in March, “the sky is faint and difficult to see the sun, people are covered and walk.” Ming Xianzong Shilu (The Annals of Emperor Xianzong) states that in 1485, “at the end of the first month of the first month, the haze in the capital covered the sun from the eve to the noon. In ancient times, most of the haze originated from burning straw and firewood, dust and so on; while in modern times, it is caused by the growth of urban population and industrial development and the increase of motor vehicles, resulting in a large increase of pollutant emissions and suspended matter. Total suspended particulate matter (TSP) refers to all particulate matter suspended in the air with an aerodynamic equivalent diameter ≤ 100 μm. Among them, PM2.5 (fine particulate matter) with aerodynamic equivalent diameter ≤ 2.5 μm can be inhaled into the alveoli and enter the blood circulation, which is the most harmful to the human body.PM2.5 mainly comes from thermal power generation, industrial production, automobile exhaust, biomass combustion, secondary generation, road dust and other processes. The root cause of the current air pollution in China’s large haze is still the emissions from coal burning, vehicles and ships, factories and other pollution sources, far exceeding the carrying capacity of the environment, coupled with the influence of unfavorable winter weather conditions. The large-scale outbreak of haze has triggered widespread attention and continuous media coverage. The most focused public attention on PM2.5 is also on its health effects. Some studies have confirmed that fine particles (PM2.5) and ultrafine particles (PM1) can cause pneumonia, whistle hypersensitivity, epithelial cell damage and increased epithelial tissue permeability; bacteria and viruses that adhere to small PM2.5 particles can easily enter the whistle to induce infection. Due to the high concentration of PM2.5, the human body may have acute reactions in the short term, such as acute whistle infections, bronchitis, acute attacks of bronchial asthma, acute exacerbation of chronic obstructive pulmonary disease, etc.; in the long term, it may aggravate diabetes, heart disease and other diseases, and even induce cancer and cause death, which has a serious impact on the national health. PM2.5 is a systemic cytotoxic factor, which is not only harmful to the whistle system, but also has adverse effects on the cardiovascular system, blood system, reproductive system and immune system. PM2.5 can stimulate the vagus nerve in the lungs, causing neurological disorders and thus the heart, aggravating heart failure, coronary heart disease and other cardiovascular diseases; the low air pressure and reduced oxygen content in hazy weather make people feel irritable and anxious, leading to an increase in blood pressure; for the blood system, PM2.5 can lead to increased blood viscosity and clotting abnormalities, inducing the formation of blood clots; PM2.5 can enter the blood circulation by pulmonary ventilation. For the blood system, PM2.5 can lead to increased blood viscosity and abnormal blood clotting and induce blood clot formation; PM2.5 can enter the blood circulation from lung ventilation and have toxic effects on the reproductive system through the blood-urine barrier; PM2.5 can also inhibit the function of various immune cells. Related human health toxicology studies have revealed that PM2.5 is a carrier that can adsorb a variety of substances on its surface, mainly heavy metal elements and toxic organic substances such as polycyclic aromatic hydrocarbons and nitro polycyclic aromatic compounds. These substances can enter the human body with PM2.5 through inhalation and directly affect the normal functions of the human body, causing various symptoms and diseases, among which polycyclic aromatic hydrocarbons are the first and most numerous carcinogens found. At a time when the whole society is “breathing with us, sharing the same fate”, the fight against haze requires strong government measures and coordination of relevant departments to gradually build a green production and lifestyle, which is a long way to go. At present, in order to prevent the adverse effects of hazy weather on health, to do as much as possible to reduce the time to go out and shorten outdoor activities; when going out to wear a mask, medical N95 mask is more appropriate; travel back to the face, nose, mouth cleaning, remove the pollution residue attached to clothing, and wash the exposed part of the body; in the hazy weather is not suitable for outdoor morning exercise, it is recommended that only do some simple indoor During extreme weather, it is inconvenient to open windows for ventilation, so indoor smoking, excessive cooking and barbecuing should be prohibited and reduced during this period to aggravate the deterioration of indoor air; green foliage plants such as green lilies, lily of the valley and tiger lilies can be planted indoors, or air purifiers can be used to reduce the content of dust and other particles in indoor air. As the saying goes, “if the righteousness exists, evil cannot dry up”, it is especially important to maintain good health when the objective environment cannot be improved in the short term. Therefore, to ensure sufficient sleep, pay attention to cold and ambient, moderate work and rest, a balanced diet. You can consume more lily, yam, mung beans, white radish, lotus root and other medicinal food products; increase water intake to promote metabolism and phlegm excretion; supplement vitamin D if necessary to reduce nutrient deficiency caused by insufficient sunlight. To relieve the body’s lack of oxygen, you can increase lung capacity and improve lung ventilation through abdominal whistling, lip contraction whistling, etc. In general, you can massage more health points, such as fish interval and Yingxiang, which can enhance the lung’s ability to resist external evil: Quchi and Sanyinjiao, which can effectively resist the roughness of skin keratinization caused by haze. According to the clinical experience of Dr. Xie Qiang, the chief physician of the Hospital of Jiangxi College of Traditional Chinese Medicine and the supervisor of the third, fourth and fifth batches of academic experience inheritance of old Chinese medicine experts, the famous Jiangxi physician of the Yuan Dynasty, Gui Yilin’s “Shi Shi Shi Yu Fang”, Volume XVII, “Treatment of upper diaphragm congestion The basic formula is “Shengma San” (Shengma, Radix Paeoniae, Ginseng, Radix Platycodon, Radix Puerariae, Glycyrrhiza Glabra, Ginger, or with the addition of Peppermint and Scutellariae) and Danshen. This formula is effective in helping to dispel evil, and it is an effective formula to deal with the haze, to benefit the nose and throat, to protect the heart and lungs, and to detoxify evil.