Common drugs that may cause bronchial asthma attacks are mainly the following categories: 1, antipyretic and analgesic drugs: such as aspirin, aminopyrine, anandamide, pautazone, finasteride, indomethacin (anti-inflammatory pain), ibuprofen, diclofenac, inflammatory pain Xikang and cold medicines containing such ingredients can cause asthma aggravation, of which aspirin is the most common. 2, cardiovascular drugs: beta-blocker class, such as propranolol (insulin), and betalactam. Therefore, asthma patients are best to avoid such drugs. In addition, other drugs such as reserpine, quazepam, and acetaminophen can also cause asthma. 3.Iodine contrast agent: mainly related to iodine allergy. 4.Aerosol: Gas inhalers can cause bronchospasm reflexively due to the stimulation of the pharynx by the projectile contained in them, especially common in isoproterenol, polymyxin, sodium cromoglycate, etc., which should be paid attention to when used. It is worth noting that clinically, isoprenaline and sodium cromoglycate are used as drugs for the treatment and prevention of asthma, but they may also induce asthma. 5, additives: many foods, beverages and pharmaceutical preparations are mostly colored with yellow dye – tartar yellow, which can cause measles, angioedema of the mouth and lips and even bronchial asthma. In addition, the preservation of preservatives used in alcohol or juice drinks and pharmaceutical preparations, such as nitrite can also cause bronchial asthma. 6, other drugs: penicillin, sulfonamides and hypoglycemic drugs. 7, protein preparations: streptokinase, chymotrypsin, various vaccines and antitoxin serum, oral pollen preparations, etc. 8, histamine and acetylcholine and other drugs whose own pharmacological effect is to cause bronchospasm, so the clinical can be used to determine the bronchial reactivity (excitation test), but generally not for patients with confirmed asthma. Common food items that may cause bronchial asthma attacks include fish, shrimp, crab and other seafood, as well as peanuts, hazelnuts and other nuts. It should be noted that the above list of drugs and foods that are more likely to cause allergies, specific to each patient, need to be screened according to their own life experience, if necessary, to the hospital for allergen testing for screening.