What is the primary treatment for allergic rhinitis?

Intranasal corticosteroids are considered the primary treatment for allergic rhinitis due to their effectiveness in reducing nasal inflammation, which is central to the symptoms experienced in this condition. These medications work by targeting the underlying inflammation that occurs in response to allergens, leading to significant improvements in symptoms such as nasal congestion, sneezing, and itching.

While antihistamines are often used and can provide symptom relief by blocking the action of histamine, they do not address the inflammation as effectively as intranasal corticosteroids. Oral corticosteroids, although potent anti-inflammatories, are generally reserved for more severe cases due to their potential side effects with long-term use. Leukotriene receptor antagonists may also have a role in managing allergic rhinitis but are typically considered adjunct therapies rather than first-line treatments.

Thus, the use of intranasal corticosteroids is preferred because they offer a robust and targeted approach to managing the inflammation and associated symptoms of allergic rhinitis.