Bronchial asthma is a common allergic disease. There are many symptoms of bronchial asthma. These symptoms seriously endanger the patient's health. During treatment, attention should be paid to the patient's diet and physical recovery. Very helpful. In response to the above questions, experts provide detailed answers below. Quit smoking and drinking: Patients with bronchial asthma should quit smoking and drinking, because smoking can cause bronchial wall spasm, increased secretions, mucosal epithelial damage, squamous epithelial metaplasia, loss of knitted hairs, and gland hypertrophy and hyperplasia. Smoke contains toxins such as aldehydes and nitrogen oxides, which can stimulate the respiratory mucosa and cause inflammation, cause coughing and phlegm, and induce and aggravate asthma attacks. Therefore, you should definitely quit smoking and avoid drinking alcohol. 2. It is forbidden to eat fish, shrimp, seafood and fishy foods. Bronchial asthma is mostly caused by allergic factors. Some people with allergies often have asthma attacks caused by eating fish, shrimp, crab, eggs, milk and other foods.