Swab apple cider vinegar over a big blemish and watch it disappear. Don’t go crazy and continuously treat any part of your skin with undiluted ACV. Just once or twice a day on a single blemish is plenty.
If you regularly wear foundation (or concealer or contour makeup) and you’re not using a Beautyblender or any makeup sponge, you’re doing it wrong. Seriously. I, too, once believed that there was nothing special about the little egg-shaped sponge that is known as a Beautyblender.