Common drugs that can 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 (Take-Away), and Betalac. Therefore, it is best for asthma patients 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 in the case of isoproterenol, polymyxin, sodium cromoglycate, etc., which should be noted 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, for alcohol or juice drinks and pharmaceutical preparations to preserve the preservative, 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 are mainly seafood such as fish, shrimp, crab, and nuts such as peanuts and hazelnuts. 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.