Allergic asthma is very harmful to patients, when the patient’s breathing becomes very rapid, accompanied by rhinitis and other diseases, the disease will become more and more serious if not treated in a timely manner Allergic asthma is mostly caused by exposure to allergens that cause asthma attacks, therefore, away from allergens can Allergic asthma can be avoided by staying away from allergens. What are the causes of allergic asthma? Allergens 1: Fungi Fungi tend to breed in humid, rainy and near-sea areas. For example, in the rainy season, often seen by Streptomyces caused by asthma patients. Allergen two: pollen There are different kinds of pollen in the air in each season. Pollen has two kinds of wind-borne and insect-borne, causing asthma is mainly wind-borne pollen, the northern region of China caused by autumn hay fever for the Chrysanthemum family of plants, it is likely to have allergens cross-sectional. Allergens three: animal fur Cat and dog dander is a recognized allergen. Aged feathers and wool can also be used as allergens. Allergen IV: Food Mainly animal foods such as fish, shrimp, crab, shellfish, eggs and milk. If you feel tightness in your chest and want to cough when cleaning or cleaning your room; keep wheezing and coughing when going out for a hike or climbing; wake up suddenly at night when you sleep because you are holding your breath, keep coughing and can’t catch your breath; keep running your nose, sneezing and feeling sick in your chest when you come in contact with cats and dogs; always feel itchy eyes, blocked nose and wheezing in spring, summer and autumn, etc., if you have the above symptoms, then you may be suffering from allergic asthma.