What are the effects of allergy shots? Choose two. Allergy shots are only effective against food allergies. It exposes the person to allergens through injections of fluid. The immune system eventually alters its response to the allergen. Allergy shots work on every possible kind of allergy.

The effects of allergy shots include:

1. Reduction of allergy symptoms: Allergy shots can help reduce the symptoms of allergies, such as sneezing, itching, and hives, by desensitizing the immune system to specific allergens.

2. Prevention of severe reactions: Allergy shots can also help prevent severe allergic reactions, such as anaphylaxis, by reducing the body's sensitivity to allergens over time.