From the point of view of the existing clinical diagnosis and treatment methods, there is no stipulation that infants cannot be tested for allergens, and doctors will recommend that infants be tested for allergens if their condition requires it. The purpose of allergen testing is to identify the allergens, and it is also an effective method for the treatment and prevention of allergic diseases, and its adaptability includes patients suffering from eczema, urticaria, atopic dermatitis, asthma, and unexplained allergies, so if necessary, the doctor can give infants allergen testing. Allergen testing, as a screening method, has no obvious contraindications, so there is no clinical argument that infants are not suitable for allergen testing. When choosing an allergen test, it is important to follow the doctor’s requirements strictly.