Powdered blush and perspiration don’t mix. In addition to looking splotchy, powdered and mineral blushes often contain mica, and can be extremely irritating and itchy to the skin when you perspire. So what's a reasonable alternative during the hot weather?
Try one of the new cheek stains, or a cream or gel blush instead. They won't ball up or streak when you sweat. Just be sure to blend it well on your cheeks so that it looks natural.
Photo credit: Honey Fangs