The exaggerated response of the immune system to dust, pollen grains, etc. results in symptoms like sneezing, watery eyes, running nose and difficulty in breathing. Which type of antibodies are responsible for this?

The exaggerated response of the immune system to dust, pollen grains, etc. results symptoms like sneezing, watery eyes, running nose and difficulty in breathing. This is termed hypersensitivity or allergy. In response to the first exposure to certain allergens, IgE antibodies are produced.