Comedones is nothing but blackheads and whiteheads. It is the part of skin disease call acne. Blackheads and whiteheads are much higher compare to pimples. Causes of acne could be Genetics, Hormones, Bacteria, Diet, Stress, Lack of Sleep, Food Allergies or Sensitives, This disease is mostly found in teens and people with oily and combination. Natural or herbal products are best to treat such types of skin disease.