What type of allergic reaction is indicated by local swelling and itching at the site?

The situation described, which involves local swelling and itching at the site of exposure, is consistent with a mild allergic reaction. Mild allergic reactions typically manifest with localized symptoms, such as itching, redness, and swelling (also known as urticaria), without systemic involvement. These types of reactions usually do not pose a significant threat to the person's overall health and can often be managed with antihistamines or topical treatments.

Moderate allergic reactions could involve more widespread symptoms, while severe reactions may present with systemic symptoms such as difficulty breathing, swelling of the face or throat, or anaphylaxis—all of which are more serious and require immediate medical attention. Life-threatening reactions, such as anaphylactic shock, are characterized by rapid and severe systemic effects that can be fatal without prompt intervention. Therefore, the presence of local symptoms alone indicates a mild reaction type.