Rhinitis allergy refers to allergic rhinitis, which can be treated with nasal glucocorticosteroids, antihistamines and antileukotrienes under the guidance of a doctor. 1. Nasal glucocorticosteroids: commonly used drugs include mometasone furoate nasal spray, budesonide nasal spray, fluticasone propionate nasal spray and so on. Possible adverse reactions mainly include nasal dryness, irritation, rhinorrhea, pharyngitis and cough, etc. Symptoms are mostly mild. 2. Antihistamines: Oral second-generation antihistamines such as loratadine and cetirizine can be used, and nasal antihistamines such as levocabastine hydrochloride spray can be used. Applicable to patients with nasal itching, sneezing, etc.. Possible adverse reactions are mainly drowsiness, do not drive, operate machinery, work at height after using the drug to avoid danger. 3. Anti-leukotriene drugs: commonly used drugs are montelukast, this drug may cause skin rash, drowsiness, nausea, vomiting, palpitations and other adverse reactions. The above drugs need to be used under the guidance of a doctor, do not self-diagnosis and treatment, so as not to delay the condition.