Of course no, crying too much can just make your eyes red and swell up. There is nothing to do with a black eye. A black eye is most commonly caused by something hitting the eye or nose. Either one or both eyes may be blackened depending on where you get hit. Other types of trauma to the head can cause black eyes, including skull fractures. So you should check out what is the reason, and then have a treatment. For example, you should have a good Rest and put some ice early after the injury. It will help to decrease swelling and pain. Besides, you must protect the area from further injury by avoiding athletic or other possibly injurious activities until the eye has healed.