Ok, this might sound a bit nuts (!) but...
Can having dogs affect your own (facial) skin? Ie stroking them and then touching your face?
We've had 2 labs now for a while, and I've always had great skin, even as a teenager, but for the past 3 months or so, I have really blotchy, and sometimes spotty skin 
This is now getting me down, as make-up isn't even covering it well 