Which mechanism of action describes how immunotherapy works in allergic rhinitis?

Immunotherapy for allergic rhinitis works by gradually increasing exposure to allergens, which allows the immune system to become accustomed to these substances over time. This method aims to desensitize the immune response, moving it away from a hyperreactive state towards a more tolerant one. By introducing small, controlled amounts of allergens, often through injections or sublingual tablets, a patient's immune system learns to respond to these allergens more appropriately, reducing the overall severity of allergic reactions and symptoms when exposed to allergens in the environment.

This method contrasts with immediate relief options, which do not address the underlying cause of allergies and are intended for short-term symptom management rather than long-term solutions. Additionally, while it may seem tempting to consider eliminating allergens or completely suppressing the immune system as part of the treatment mechanism, these approaches do not align with the principles of immunotherapy, which focuses on leveraging the immune response rather than undermining it.