Seasonal rhinitis is mainly caused by allergic reactions, which are related to the body's exposure to external allergens. It is recommended that individuals seek care from an otorhinolaryngologist after experiencing allergies, to conduct external allergen screening and identify specific allergens. Most patients can only control their condition and alleviate symptoms. If it is a case of a dust mite allergy of grade three or above, desensitization treatment can be considered. After desensitization, some patients may achieve clinical cure, but others might only see improved symptoms without a complete cure. Overall, regular follow-up is necessary to monitor changes in the condition, and contact with allergenic substances should be avoided as much as possible.