Bronchial asthma caused by cold and flu need to be treated at the same time for cold and bronchial asthma, mainly take medication. 1. Cold and flu treatment: rest, drink plenty of water and symptomatic treatment, such as patients with nasal congestion, runny nose and other symptoms, you can take cold and flu particles. If cough, cough phlegm, can take cough medicine, such as bromhexine, this kind of drug allergy is prohibited. 2. Bronchial asthma treatment: The medications used to treat bronchial asthma include controlled drugs such as budesonide, fluticasone and other inhaled glucocorticosteroids, and leukotriene modulators such as montelukast. Controlling drugs need to be maintained every day; relieving drugs such as salbutamol and terbutaline are fast-acting, but should not be used for a long period of time, singly, or in excessive doses. If bronchial asthma is caused by a cold, you should go to the hospital to see a doctor to find out the cause of the cold. All of the above medications should be used under the guidance of a doctor, avoid self-medication.