Black eyes is commonly due to injury in eyes or on face. People who get it will suffer pain, burning, itchy and redness in eyes. Some even get severe conditions, such as blurred vision and photophobia. Home remedies are various included applying tea tree oil on blacks, using apple cider vinegar to relieve injury and reduce black around eyes. Well, it is really horrible and so noticeable if blacks under your eyes. Vinegar is a product of fermentation. This is a process in which sugars in a food are broken down by bacteria and yeast. Apple cider vinegar are good to brake down bacteria, yeast, swellings and injuries.