Allergic rhinitis preferably requires allergen checking, which serves to avoid allergens as much as possible and reduce the stimulation of the nasal cavity by allergens, thus reducing the occurrence of allergies. In addition, desensitization treatment is also available, such as successful desensitization can eradicate allergic rhinitis, but the time is longer generally for 3 years, but allergy checking is not very common. For one thing, it is difficult to avoid allergens, because allergens are mostly present in the surrounding environment in life, such as mites in dust, cold air, pollen, etc. Secondly, desensitization is more mature only mite drops in dust, and besides, the course of treatment is long many people can not adhere to. Therefore, the reality is that most people still choose conservative treatment, that is, medication, mainly given hormonal drugs spray nose and oral anti-allergy drugs, can also achieve good results.