What is the first-line treatment for allergic rhinitis?

Intranasal corticosteroids are considered the first-line treatment for allergic rhinitis due to their effectiveness in reducing inflammation and controlling symptoms such as nasal congestion, itching, and sneezing. They work directly at the site of inflammation in the nasal passages, providing significant relief for patients suffering from seasonal or perennial allergic rhinitis.

Using intranasal corticosteroids can alleviate symptoms more efficiently compared to other options, providing a better overall result in managing the condition. While oral antihistamines can help alleviate symptoms as well, they primarily focus on blocking histamine, which may not address nasal congestion as effectively as intranasal corticosteroids. Decongestants may provide temporary relief but do not treat the underlying inflammation that contributes to allergic rhinitis symptoms. Leukotriene receptor antagonists can be used as an alternative therapy, but they are not considered first-line treatment due to their less direct action on allergic inflammation compared to intranasal corticosteroids.