There are a large number of allergens in the living environment that can cause asthma attacks, such as dust mites, fungi, and animal dander. Therefore, you should try to reduce the allergens in the environment to a minimum. 1, do not place fluffy products, blankets, fabric sofas and other items conducive to dust mite breeding in the bedroom; Lin Jiangtao, Department of Respiratory Medicine, Beijing China-Japan Friendship Hospital 2, the bedroom should avoid humidity, pay attention to ventilation; 3, bedroom bedding should be frequently exposed to the sun and cleaned, and hot water scalding to kill dust mites; 4, such as economic conditions allow, should be replaced once every 3 to 5 years bedding. Replace new mattresses and pillows; 5. All parts of the living room should be regularly dusted, preferably with a dust mite vacuum cleaner; 6.