You could just find the clean cloth and hot water to do the warm compress to make your eyes feel comfortable. You should cover the wet clean cloth on your surface of the eyes which will release your black eyes to some degree. You could also wear the sunglasses when you are out not only hide the ugly look but also protect your eyes from uv rays.
Well, first, you should know that when blood and other fluids collect in the space around the eye, a black eye can be possible. For the causes, it is often caused by the injury to the face or the head. And then of course, swelling and dark discoloration can appear. To cure it quickly, you can have warm compresses which will be effective for your black eyes, for they can make your blood flow smoothly. Also, you can just have ice or cold teabags under your eyes. And then repeat it for several times. In that way, of course, it will relieve the symptoms effectively.