1, reduce going out, especially the elderly, children, especially people with lung diseases; 2, wear a mask to reduce the invasion of toxic substances from the nose and mouth into the human lungs; 3, from the perspective of Chinese medicine: the lungs like moistening and hate dryness. Eat some lung moistening food, good for the lungs, less spicy and stimulating food, drink more water. Lungs moistening melons and fruits such as: pears, grapefruit, kumquats, sugar cane, water chestnuts, etc.; vegetables such as: white radish, lotus root, chrysanthemum, purple cabbage, etc.. You can also eat some tofu, which has the effect of clearing heat and moistening dryness, and eat less beef and mutton. For those who like to drink porridge, you can choose gingko lily porridge, which has a good effect of clearing the heart and moistening the lungs. People who are busy at work can simply brew some tea: such as Luo Han Guo tea, which has the effect of clearing the throat and lungs; or can brew chrysanthemum and maitake tea, which has the effect of nourishing yin and moistening the lungs and stopping cough and throat. In addition, it is recommended that this weather, keep a relaxed mood, less liver fire, enhance the body’s immune function, to prevent the occurrence of disease.