Moisture in Headlight Housing?

[oldy800]

 

There is probobaly another post here somewhere about this so sorry if im repeating here. 2015 GMC HD, noticed moisture drivers inside headlight housing after running truck through the car wash. First time since i bought the truck new in July 2014, any ideas how to get rid of moisture and repair so no repeat performance and insure passenger side doesn't end up the same way? All help and suggestions are welcome and appreciated.

[480Ruger]

I've got a fog light doing the same.  Following

[avalonandl]

Is there a crack? The lights have round access panel with a gasket on the back, is that tite?

[oldy800]

Just got back from holidays, will look into ur suggestions as soon as things warm up here in Alberta -14 degrees C here today.

[oldy800]

Oh sorry thanks to you folks for your ideas, its what i love about this site, honesty and insightful help.