Headlights have moisture and condensation inside? How do I Fix this problem?

Some past threads on this.
If I recall, you basically want to get a little gentle heat on there to drive the moisture out. Probably best to take the bulb out to give an escape hatch for the moisture. If its a standard non-HID headlamp, you will note that removing the lamp gives you an opening in there. If you've never tried to replace a bulb, see several YouTube vidoes...there's the quick method which requires smaller hands with dexterity or the long method where you take off a few panels to improve accessibility.

 

Remove bulb/lamp, park car in sun and let Mother Nature bake the moisture out or remove bulb and use a hair drier on cool or low setting. Any idea on how the moisture is accumulating in there (e.g. crack, break, improper bulb fitment, obstructed headlight vent) as you will want to resolve this a well.