What does it mean when your eye feels bruised and hurts when i blink. it is under the skin. what can i do to get it to go away?

Tough case: There are a number of possibilities. It is important to insure there is nothing physically under your lid so flushing out with an eye wash is a good place to start. This can also be a symptoms of dry eyes which over the counter tear drops can relieve. The surrounding symptoms are important. If these two simple solutions do not resolve your concern I would recommend you see an Ophthalmologist.