My front headlight has a minor hole and, when it rains, water leaks in and it I think has rusted one of the sockets (?).

I would like to take the headlight off to wash away the "orange dust", replace the bulb and super-glue the hole shut. Just spent 1 hour outside trying - to no avail. Does anyone know how to replace the headlights? Please tell me I don't have to remove the bumper!