Topical medications for rhinitis are commonly found in three types. The first is nasal hormones, including mometasone furoate nasal spray, fluticasone propionate nasal spray, and budesonide nasal spray, these drugs have a strong anti-inflammatory and anti-metabolic effects, and can be used continuously for 4 months without any major harm to the body; the second is antihistamines, including levocabastine and azelastine nasal spray, these drugs are mainly anti-metabolic, relieving nasal itching and sneezing these The third is the nasal intercongestion drugs, usually with hydroxymetazoline and serozoline nasal spray, mainly through the contraction of nasal mucosa, improve nasal ventilation, commonly used in acute rhinitis, nasal congestion when serious application.