After reading the thread about what is living on our skin.... I researched the human Demodex mite online and found that it is a cause of many skin problems on the face and scalp.
Estimated over 97% of humans have demodex on the oily areas of their face and scalp and in the eyelashes. They live on our sebum in pores. If you can get rid of most of them, it may help to clear your skin.
Use a cleanser/toner containing Sea Buckthorn Oil, like those made by Aubrey Organics. I found them at the local natural foods store, but you can buy the products online. Also, pore clearing strips made by Biore will pull out the oil plugs and demodex. If you are consistent in using the Sea Buthorn Oil products to cleanse every morning and evening for long enough to wipe most of them out during their life cycle, it should help clear your skin.
They are passed from adults to infants by touch, including breast feeding, cuddling, etc. The large pores on forehead, nose and chin harbor these guys.
Most of the research online seems to be from a doctor in China, but you can find the info at many sources.