Hello my one eye is bigger than the other and is more bulging why? what can i do to treat it

Eyes: There are medical and non medical causes for the eye to appear to bulge. If it has always been this way then, like most people, you may have some facial asymmetry. If it's new or changing you could have hyperthyroidism, infection or other swelling behind the eye and it should be checked immediately. It is extremely urgent if it is painful or your vision has changed.