Spring is here, the weather is warming up, the earth is reviving, and everything is coming to life. While we welcome spring, we should not forget to prevent asthma. Asthma is commonly referred to as bronchial asthma in medical terms. It is a chronic inflammatory disease involving a variety of cells and cellular components, which is often accompanied by an increase in airway reactivity. Typical asthma manifestations are recurrent wheezing, coughing, and chest tightness. In severe cases of wheezing, the patient may hear a wheezing sound during breathing. It is important to note that some patients only have a cough without wheezing, which is usually an irritating dry cough with paroxysmal attacks and little sputum. There is no cure for asthma, but with proper management, the chance of an attack will be greatly reduced. How to prevent asthma attacks? 1, to avoid contact with allergens related to the onset of the attack. In spring, when flowers are in full bloom, the concentration of pollen particles in the air rises significantly, and the pollen floating in the air can trigger or aggravate asthma. In addition, spring is windy, with more sand and dusty weather, and the concentration of respirable particles increases, which can also cause asthma attacks. Then, wearing a mask when going out is a simple and effective way to avoid contact with allergens, and also to avoid going to places with high pollen concentration, such as botanical gardens and gardens; 2. To prevent respiratory tract infections. Spring weather is hot and cold, the temperature difference between day and night is also large, making people vulnerable to respiratory infections, and respiratory infections are closely related to the onset of asthma. Therefore, the spring dress should be appropriate, according to the weather temperature changes, timely increase or decrease clothing, to avoid cold and cold; 3, the living room environment should be appropriate. The dust in the carpet, sofa and air conditioner in the living room often hosts invisible mites, molds and other microorganisms, and the temperature and humidity in spring are very suitable for them to grow and reproduce, and these microorganisms can also induce or aggravate asthma. Therefore, windows should be opened regularly to ventilate the air, the living room should be arranged in a simple way, no flowers, carpets, etc. The air conditioning filters should be cleaned regularly, and bedding should be washed and dried regularly to reduce mites, molds and other microorganisms; 4. Prevention and control of allergic rhinitis (also known as allergic rhinitis). Some data show that about 60% of asthma patients suffer from allergic rhinitis. There is also information that patients with asthma combined with allergic rhinitis can significantly reduce the frequency of asthma attacks and alleviate the symptoms of asthma by actively controlling rhinitis on the basis of tracheal inhaled glucocorticoid therapy. Since spring is also a good season for allergic rhinitis, so once the symptoms of runny nose, sneezing and nasal congestion appear, you must not take it lightly as it may be allergic rhinitis and treat it in a timely manner. In addition, asthma patients should carry salbutamol or terbutaline aerosol with them when they go out to relieve symptoms in case of asthma attacks. The above two drugs have the characteristics of fast onset of action and can quickly relieve the symptoms of breathing difficulties. It is important to note that the application of these two drugs should not exceed 8 sprays in 24 hours, after which the toxic side effects will increase significantly, and at the same time, it also indicates that the symptoms of asthma attack are heavy, and it is necessary to go to the hospital to adjust the medication plan by the doctor, and may even need to go to the emergency room.