Nasal agitation refers to the abnormal movement of the nose. This evidence is mostly seen in dyspnea due to hyperthermic diseases, such as lobar pneumonia, and bronchial asthma. Bronchial asthma is the disease that is most likely to recur, especially in autumn and winter. So, how to do a good job of prevention? 1, get rid of allergens Try to find out allergens and avoid contact with them, is an important measure to prevent the recurrence of asthma. If it is known that taking certain drugs and foods can trigger asthma, you should not take them again in the future. If the allergen is an infection or intestinal parasitic disease, the infection and parasitic disease should be prevented and treated. Some allergens, such as dust and dust mites, are difficult to avoid, but inhalation should be reduced as much as possible, such as bedding should be washed and dried frequently, the room should be kept clean and ventilated frequently, and for those who are allergic to pollen, the flowers and trees related to allergies can be removed and contact should be avoided as much as possible during the flowering season. 2, appropriate exercise In the remission period should participate in appropriate physical activities. Such as qigong, taijiquan, walking, running, swimming, medical gymnastics, breathing training, etc., such as long-term adherence, step by step, can enhance physical fitness and reduce the incidence. 3.Regulate stable emotion Stabilize good mental emotion, which has a certain preventive effect on asthma. Therefore, patients should enhance confidence in overcoming the disease, eliminate tension and avoid bad mental stimulation. Participating in cultural and sports activities can adjust the tension, which also has a good effect on asthma. 4.Desensitization therapy Desensitization therapy is a kind of specific immunotherapy, which is applicable to allergic (exogenous) asthma. The principle is to use small doses of allergens for multiple injections to produce blocking antibodies IgG in human body, while reducing the production of specific IgG and consolidating mast cells or basophilic cell membranes. 5.Application of vaccine Asthma vaccine is mainly used for patients with endogenous asthma induced by respiratory bacterial or viral infections each time. It is a kind of non-specific immunotherapy, which can improve the phagocytosis of macrophages and increase the body’s ability to resist disease. A triple (Streptococcus A, Staphylococcus albus and Neisseria) vaccine is commonly used. Usually, it takes 2 months for the drug to take effect, therefore, for seasonal disease, it should be injected subcutaneously once or twice a week starting 2 months before the season, with an initial dose of 01ml, and then increasing by 01-02ml each time until 1ml is the maintenance amount, and 15-20 times for a course of treatment. It can be applied year-round for those who have frequent attacks throughout the year. 6.Application of disodium cromoglycate Disodium cromoglycate is an effective drug for preventing asthma attack, increasing the stability of cell membrane of mast cells and reducing the degranulation of mast cells. It can be used to prevent exogenous, endogenous and exercise asthma attacks, and generally has a better effect on exogenous. 7.The application of ketotifen is a new drug for the prevention and treatment of type I allergic reactions, with stronger effect than disodium cromoglycate, mainly for the treatment of exogenous, locomotor and asthma caused by aspirin, etc. 8.Coldimethasone dipropionate aerosol COLDIMETHASONE dipropionate aerosol is a strong hormone, with strong local anti-inflammatory effect, almost no side effects except may cause mycobacterial infection.