What is the first-line treatment for seasonal allergic rhinitis?

Intranasal corticosteroids are considered the first-line treatment for seasonal allergic rhinitis due to their effectiveness in reducing inflammation and alleviating symptoms such as nasal congestion, sneezing, and itching. These medications work by directly targeting the nasal mucosa, leading to a decrease in the inflammatory response caused by allergens. This targeted approach makes intranasal corticosteroids particularly beneficial for individuals with moderate to severe symptoms.

While antihistamines are commonly used and effective at relieving symptoms like sneezing and runny nose, they do not address the underlying inflammation as effectively as intranasal corticosteroids. Decongestants can provide short-term relief from nasal congestion but are not intended for long-term management and may not be suitable for all patients due to the potential for side effects, particularly with prolonged use. Oral steroids can be effective for severe cases or as a short-term option but are not used as a first-line treatment due to the risk of significant side effects with long-term use.

Overall, intranasal corticosteroids offer a comprehensive approach to managing seasonal allergic rhinitis, making them the preferred initial treatment option.