Adenoid hypertrophy is caused by allergic rhinitis, with secretions flowing to the back of the nose for a long time and repeatedly stimulating the adenoids. Conservative treatment can significantly improve the symptoms. It is recommended that the nasal application of mometasone furoate nasal spray (i.e. Nesuna), oral cetirizine drops or desloratadine pellets, etc., as well as the use of mucus pro-discharge agent Centrumbe drops taken orally, bacterial lysis products, pidomod oral solution to enhance respiratory resistance.