Eye allergies could cause some symptoms like watery eyes, redness, dryness and eyelids swollen because the allergies cause inflammation of the tissue around or in eyes or excessive fluid collected around. To reduce its puffiness, you should treat the allergy at once. Normally speaking, the inflammation caused by allergy comes and goes very fast. As long as if you stay away from the allergens, these annoying symptoms would clear out very soon. If you still feel your eyelids puffy, you could wash your eyes with some water and massage your eyes gently to help blood circulation and fluid absorption.