Lately i've been noticing a lot of fog and frost building up on the interior windows in my 02 RSX-S. It usually happens when theres someone else in the car with me but it also happens when im driving alone. I try blasting heat and a/c at it but that barely clears it up at all and its very hard for me to see my surroundings making it unsafe to drive. I've tried using the the rain x anti fog treatment and it worked for about a week but now theres a layer of white frost building up on the windows and its very hard to wipe off. Any ideas of what this may be? I'm from Chicago and we are currently having very low temperatures.