What are the two main routes of allergen immunotherapy for allergic rhinitis?

What are the two main routes of allergen immunotherapy for allergic rhinitis?

• A. Subcutaneous immunotherapy (SCIT) and sublingual immunotherapy (SLIT)
• B. Oral immunotherapy and inhaled immunotherapy
• C. Intranasal immunotherapy and topical immunotherapy
• D. Subcutaneous immunotherapy and intravenous immunotherapy

Answer: (A)

Allergen immunotherapy for allergic rhinitis is delivered mainly by injections under the skin or under the tongue. Subcutaneous immunotherapy uses injections with a gradual build-up to a maintenance dose, usually given in a clinic because of the small risk of a systemic reaction. Sublingual immunotherapy involves placing allergen extracts under the tongue as drops or tablets, which can often be taken at home after an initial supervised period and generally has a favorable safety profile. Both approaches aim to retrain the immune system to tolerate the allergens and can reduce symptoms and medication use over time. Other routes like oral, intranasal, inhaled, or intravenous immunotherapy aren’t considered the two standard main options for allergic rhinitis, making SCIT and SLIT the correct pair.

Allergen immunotherapy for allergic rhinitis is delivered mainly by injections under the skin or under the tongue. Subcutaneous immunotherapy uses injections with a gradual build-up to a maintenance dose, usually given in a clinic because of the small risk of a systemic reaction. Sublingual immunotherapy involves placing allergen extracts under the tongue as drops or tablets, which can often be taken at home after an initial supervised period and generally has a favorable safety profile. Both approaches aim to retrain the immune system to tolerate the allergens and can reduce symptoms and medication use over time. Other routes like oral, intranasal, inhaled, or intravenous immunotherapy aren’t considered the two standard main options for allergic rhinitis, making SCIT and SLIT the correct pair.