What is the first-line treatment for allergic rhinitis?

Intranasal corticosteroids are considered the first-line treatment for allergic rhinitis due to their efficacy in reducing inflammation in the nasal passages. They work by targeting the underlying mechanism of allergic reactions, which involves the release of inflammatory mediators. By decreasing this inflammation, intranasal corticosteroids help alleviate symptoms such as nasal congestion, sneezing, and itching more effectively than other medication options.

While oral antihistamines can provide symptom relief by blocking histamine receptors, they do not address the inflammation associated with allergic rhinitis, making them less effective as a first-line treatment. Decongestants can offer temporary relief of nasal congestion but do not have the anti-inflammatory properties necessary for long-term management. Leukotriene receptor antagonists also play a role in controlling allergic symptoms, but they are generally not the first-line therapy and are often used when patients do not respond adequately to intranasal corticosteroids alone. Therefore, intranasal corticosteroids are recommended as the preferred initial approach for treating allergic rhinitis.