Asthma allergen detection is divided into two ways, as follows: 1, to the hospital for formal testing, detection methods clinically common is to draw blood, by drawing blood to detect whether the patient’s body has antibodies to allergic substances, which is the allergen detection, such as by drawing blood to check that the patient is positive for pollen antibodies or seafood antibodies positive, etc., is the detection method of allergens; 2, patients and family members to their own careful detection, daily life In the case of coughing and wheezing when encountering a certain smell, cold air or shaking cotton clothes or quilts, it is necessary to know that cold air and this smell, including mites and molds in cotton clothes, may be allergens, and this is the time to pay attention to it, and it is necessary to detect asthma allergens through experience in daily life.