A simpler and quicker DIY fix is this. Take the headlight assembly off your car. Obviously remove the bulbs. Take a hair dryer and blow the hot air into the vents and holes that the bulbs would normally go into. Do it for about a half an hour or so..It will dry up the condensation. Then put the headllight assembly back on your car. Mine had pretty bad condensation one time and thats what i did. I've never had it come back again.