Prevention of bronchial asthma attacks comes at certain times of the year, such as the beginning of spring time and late summer/early fall in September. Both are high incidence time of asthma. It brings a lot of troubles to patients. So how to prevent asthma attacks? 1, first of all, asthma has hereditary and diverse and complex performance. If you have a history of asthma in your family, you should pay attention to it from the time you are pregnant, for example, during pregnancy, you can eat more vegetables and fruits such as apples and cherries. Pregnant women should not smoke, including second-hand cigarettes, there is definite evidence that cigarettes back to increase the incidence of asthma in infants and children. 2, second, after the birth of breastfeeding as much as possible, preferably for a longer period of time, more than 4-6 months. Breastfeeding can certainly reduce the occurrence of asthma. 3, house decoration. We often encounter in the clinic that patients have asthma attacks or aggravation after moving into a newly renovated house. Our current decoration materials, even with great care, inevitably have irritating odors and other allergic substances present. After renovating a house, it is best to let it ventilate for a long time, as to how long exactly, there is no research evidence, the recommended six months or more. Including car car pollution should also pay attention to. 4, allergen testing. Generally no seat routine item patient recommendations. But if the test comes out very clear each substance allergy, causing asthma, it is recommended that you can still try. 5, Western medicine drug prevention, currently recommended in the expected asthma attack about half a month before the use of corticosteroid inhaler such as fluticasone, budesonide, or beclomethasone, one of the airway inhalation can reduce or to some extent reduce the occurrence of asthma attacks. Montelukast sodium is also used as an asthma attack prevention drug. 6. Diet. Try to eat less or no stimulating diet, such as chili, pickled brine products, of course, research should be more taboo. Diet is mainly rich in nutrients and easy to digest. If it is clear that a food allergy causes asthma should be absolutely avoided. 7. Exercise. Appropriate exercise, such as running, swimming, etc., but according to individual circumstances to determine. Swimming water quality is also a problem that needs attention. 8, Chinese medicine. You can appropriately use some Chinese medicine, such as Astragalus, fried Atractylodes, etc., but it is best to do so under the guidance of a doctor. Cleanliness and hygiene. It is best not to have dogs, cats and other pets in the home. Do not lay carpets. Regularly wash bedding, bed sheets, sofa cushions, etc. Regularly do a comprehensive house cleaning because in addition to house dust mites, secretions from rats, cockroaches, etc. are also risk factors for asthma.