Many allergic rhinitis patients, by repeated episodes of nasal itching, sneezing, nasal congestion, runny nose for a long time, and commonly used oral anti-allergy drugs, nasal hormone sprays can only short-term improvement of the symptoms, and can not achieve the purpose of complete eradication. Clinical verification: most of the patients are caused by mites, which are hidden in air conditioners, clothes, bedding, and cannot be avoided in daily life; only desensitization can cure the root cause. Traditional subcutaneous injection of mite desensitizer is inconvenient to use (need to go to the hospital regularly for injection), local pain, adverse reactions, high cost (10,000-20,000 yuan for a full course of treatment), poor patient compliance, and difficult to promote in practice. Sublingual mite desensitization treatment, compared with the traditional subcutaneous injection desensitization, the advantages are: easy to use (can be taken at home before going to bed), no pain, little adverse reaction, high safety, low cost (full course of 6000 RMB). The cure rate of allergic rhinitis can reach “80%. Warm reminder: 1, must be confirmed by the allergen test for mite allergy, children over 6 years old, no major systemic diseases, can be applied. 2, 1 week before the allergen test, can not take antihistamines (kairatan, cetirizine, paracetamol) and some cold medicines, so as not to affect the test results. 3, desensitization treatment is slow to take effect, generally 2-12 weeks to take effect, so it is necessary to cooperate with the symptomatic treatment of drugs in the early stage; after the effect, it is still necessary to adhere to the long-term use of drugs, in order to consolidate the effect of treatment.