Which of the following treatments is considered first-line for allergic rhinitis?

Intranasal steroids are considered first-line therapy for allergic rhinitis due to their potent anti-inflammatory effects. They work by reducing inflammation in the nasal passages, alleviating symptoms such as nasal congestion, sneezing, and itching. These medications target the underlying pathophysiology of allergic rhinitis by decreasing the immune response associated with allergen exposure.

In clinical practice, intranasal corticosteroids are often preferred because they provide significant symptom relief and can be used safely for both seasonal and perennial allergic rhinitis. They are effective in controlling symptoms even when taken on a long-term basis.

In contrast, while oral antihistamines are commonly used to relieve symptoms, they do not address nasal congestion as effectively as intranasal steroids. Mast cell stabilizers are typically considered as adjunctive therapies or for patients with milder symptoms and have a slower onset of action. Topical decongestants can provide rapid relief but are not recommended for long-term use due to the risk of rebound nasal congestion.