The therapeutic drugs for allergic rhinitis are: 1. The use of antihistamines such as chlorphenamine maleate and loratadine can effectively relieve symptoms such as runny nose, sneezing and itchy nose. Sometimes it also has a good effect on conjunctival symptoms such as jealousy and itchy eyes, as well as itching of ears, pharynx and palate. But the effect on nasal congestion is slightly worse. 2. In moderate and severe patients, if the effect of antihistamine alone is not good, nasal spray hormone, such as budesonide, can often have good effect, and the adverse reaction is mild, so it can be used safely. It is suggested that patients use drugs correctly according to the doctor's advice in order to obtain the best treatment effect and avoid adverse drug reactions. Removing allergens can prevent the recurrence of diseases. If the symptoms are still not improved after removing allergens, local nasal mucosa constrictor and glucocorticoid nasal spray can be used for local treatment. At the same time, it can also be combined with oral drugs to treat both internal and external diseases, such as antiallergic drugs and Chinese patent medicines. Allergic rhinitis is mostly caused by hair, mites, catkins and pollen. Patients should cooperate with doctors to detect allergens in time, and take the initiative to eliminate items or foods that are easy to cause allergies after identifying allergens to prevent the recurrence or continuous aggravation of the disease. 1. Nasal mucosa constrictor: If allergic rhinitis causes nasal congestion, nasal mucosa constrictor can be applied locally, such as oxymetazoline hydrochloride nasal drops and xylometazoline hydrochloride nasal spray. It can shrink the swollen and congested nasal mucosa, help improve nasal drainage, and thus achieve the purpose of relieving nasal congestion symptoms.

2. Glucocorticoid nasal spray: If sneezing, nasal congestion, nasal itching and other symptoms are serious, you can switch to glucocorticoid nasal spray, such as triamcinolone acetonide nasal spray and mometasone furoate aqueous nasal spray. Has antiallergic and antipruritic effects, and is suitable for moderate and severe allergic rhinitis.