What is the recommended initial treatment for nasal congestion associated with allergies?

The recommended initial treatment for nasal congestion associated with allergies is intranasal corticosteroids. These medications work by reducing inflammation in the nasal passages, thereby alleviating both nasal congestion and other allergy-related symptoms such as sneezing and runny nose. Intranasal corticosteroids are highly effective and are considered the first-line treatment for allergic rhinitis because they address the underlying inflammatory process that contributes to nasal congestion following allergen exposure.

While oral antihistamines can help manage other allergy symptoms like itching and sneezing, they are less effective in treating nasal congestion compared to intranasal corticosteroids. Decongestant nasal sprays can provide temporary relief from congestion but may lead to rebound congestion if used for extended periods. Saline nasal irrigation can help moisten the nasal passages and provide some relief, but it does not address the underlying inflammation as effectively as intranasal corticosteroids do. Thus, intranasal corticosteroids are considered the best initial option for treating nasal congestion due to allergies.