Preparation, I always take my skeeter suit, thin light weight and it sure helps keep them skeeters off somewhat. Pack well, in my rumpsac I'm sure to have plenty of power-aid, you'll cool off somewhat once you're in the stand and stationary. Hunt early morning, its usually the coolest. But like anything else about the woods, hunker down and deal with it. After awhile you'll sorta kinda get use to it and know what to expect.
FirstBow