I have a 99 civic. Nothing done to it. I had it for about a year now and i began to get moisture in the passenger side head light. I was wondering if any one else had this problem and what is the best way to deal with this

 

You might have a crack or opening some where around the light housing. Check and see if you dont have any crack.

 

if there are no cracks check the bulb seal, the part that sits between the bulb socket and the lampcase. Good Luck!!!

 

and make sure the little drain holes in the boot around the bulb are pointed down.

 

be sure the seal around the lense and back is still good also.

 

And you say you have not done anything to the car, did you buy it with aftermarket headlights, cause those cheap one's dont ahve good seals or even drains.

 

that used to happen to my clear corners (when i had them)like they said check the seals cuz it only happened to me when it rained. i replaced mine to solve the problem though.